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Finding the Fourth Proportional to 903.10, 1,244.82 and 654.08

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Solution

The fourth proportional to 903.10, 1,244.82 and 654.08 is: 901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.10 : 1,244.82 = 654.08 : x
  2. Step 2: Convert to fraction form
    903.10/1,244.82 = 654.08/x
  3. Step 3: Cross multiply
    903.10x = 1,244.82 × 654.08
  4. Step 4: Simplify right side
    903.10x = 814,211.87
  5. Step 5: Solve for x
    x = 814,211.87/903.10
  6. Step 6: Final answer
    x = 901.57

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Double scale
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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.