Home / 1,126.10-1,689.46-569.46

Finding the Fourth Proportional to 1,126.10, 1,689.46 and 569.46

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Solution

The fourth proportional to 1,126.10, 1,689.46 and 569.46 is: 854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.10 : 1,689.46 = 569.46 : x
  2. Step 2: Convert to fraction form
    1,126.10/1,689.46 = 569.46/x
  3. Step 3: Cross multiply
    1,126.10x = 1,689.46 × 569.46
  4. Step 4: Simplify right side
    1,126.10x = 962,084.80
  5. Step 5: Solve for x
    x = 962,084.80/1,126.10
  6. Step 6: Final answer
    x = 854.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.