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Finding the Fourth Proportional to 751.87, 1,037.74 and 437.19

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Solution

The fourth proportional to 751.87, 1,037.74 and 437.19 is: 603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.87 : 1,037.74 = 437.19 : x
  2. Step 2: Convert to fraction form
    751.87/1,037.74 = 437.19/x
  3. Step 3: Cross multiply
    751.87x = 1,037.74 × 437.19
  4. Step 4: Simplify right side
    751.87x = 453,689.55
  5. Step 5: Solve for x
    x = 453,689.55/751.87
  6. Step 6: Final answer
    x = 603.41

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Double scale
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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.