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Finding the Fourth Proportional to 1,348.23, 1,860.55 and 758.77

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Solution

The fourth proportional to 1,348.23, 1,860.55 and 758.77 is: 1,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.23 : 1,860.55 = 758.77 : x
  2. Step 2: Convert to fraction form
    1,348.23/1,860.55 = 758.77/x
  3. Step 3: Cross multiply
    1,348.23x = 1,860.55 × 758.77
  4. Step 4: Simplify right side
    1,348.23x = 1,411,727.24
  5. Step 5: Solve for x
    x = 1,411,727.24/1,348.23
  6. Step 6: Final answer
    x = 1,047.10

Related Problems

Find fourth proportional to 674.11, 930.28 and 379.38
Half scale
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Double scale
Find fourth proportional to 1,349.23, 1,861.93 and 759.77
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.