Home / 1,037.18-1,431.28-565.06

Finding the Fourth Proportional to 1,037.18, 1,431.28 and 565.06

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Solution

The fourth proportional to 1,037.18, 1,431.28 and 565.06 is: 779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.18 : 1,431.28 = 565.06 : x
  2. Step 2: Convert to fraction form
    1,037.18/1,431.28 = 565.06/x
  3. Step 3: Cross multiply
    1,037.18x = 1,431.28 × 565.06
  4. Step 4: Simplify right side
    1,037.18x = 808,756.25
  5. Step 5: Solve for x
    x = 808,756.25/1,037.18
  6. Step 6: Final answer
    x = 779.77

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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.