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Finding the Fourth Proportional to 1,344.47, 1,855.23 and 746.91

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Solution

The fourth proportional to 1,344.47, 1,855.23 and 746.91 is: 1,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.47 : 1,855.23 = 746.91 : x
  2. Step 2: Convert to fraction form
    1,344.47/1,855.23 = 746.91/x
  3. Step 3: Cross multiply
    1,344.47x = 1,855.23 × 746.91
  4. Step 4: Simplify right side
    1,344.47x = 1,385,689.84
  5. Step 5: Solve for x
    x = 1,385,689.84/1,344.47
  6. Step 6: Final answer
    x = 1,030.66

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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.