Home / 1,037.93-1,433.11-640.13

Finding the Fourth Proportional to 1,037.93, 1,433.11 and 640.13

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Solution

The fourth proportional to 1,037.93, 1,433.11 and 640.13 is: 883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.93 : 1,433.11 = 640.13 : x
  2. Step 2: Convert to fraction form
    1,037.93/1,433.11 = 640.13/x
  3. Step 3: Cross multiply
    1,037.93x = 1,433.11 × 640.13
  4. Step 4: Simplify right side
    1,037.93x = 917,376.70
  5. Step 5: Solve for x
    x = 917,376.70/1,037.93
  6. Step 6: Final answer
    x = 883.85

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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.