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Finding the Fourth Proportional to 895.55, 1,235.91 and 674.15

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Solution

The fourth proportional to 895.55, 1,235.91 and 674.15 is: 930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.55 : 1,235.91 = 674.15 : x
  2. Step 2: Convert to fraction form
    895.55/1,235.91 = 674.15/x
  3. Step 3: Cross multiply
    895.55x = 1,235.91 × 674.15
  4. Step 4: Simplify right side
    895.55x = 833,182.55
  5. Step 5: Solve for x
    x = 833,182.55/895.55
  6. Step 6: Final answer
    x = 930.36

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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.