Home / 1,037.45-1,431.66-571.70

Finding the Fourth Proportional to 1,037.45, 1,431.66 and 571.70

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Solution

The fourth proportional to 1,037.45, 1,431.66 and 571.70 is: 788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.45 : 1,431.66 = 571.70 : x
  2. Step 2: Convert to fraction form
    1,037.45/1,431.66 = 571.70/x
  3. Step 3: Cross multiply
    1,037.45x = 1,431.66 × 571.70
  4. Step 4: Simplify right side
    1,037.45x = 818,472.86
  5. Step 5: Solve for x
    x = 818,472.86/1,037.45
  6. Step 6: Final answer
    x = 788.93

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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.