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Finding the Fourth Proportional to 901.77, 1,244.87 and 607.51

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Solution

The fourth proportional to 901.77, 1,244.87 and 607.51 is: 838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.77 : 1,244.87 = 607.51 : x
  2. Step 2: Convert to fraction form
    901.77/1,244.87 = 607.51/x
  3. Step 3: Cross multiply
    901.77x = 1,244.87 × 607.51
  4. Step 4: Simplify right side
    901.77x = 756,270.97
  5. Step 5: Solve for x
    x = 756,270.97/901.77
  6. Step 6: Final answer
    x = 838.65

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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.