Home / 1,165.19-1,747.10-580.17

Finding the Fourth Proportional to 1,165.19, 1,747.10 and 580.17

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Solution

The fourth proportional to 1,165.19, 1,747.10 and 580.17 is: 869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.19 : 1,747.10 = 580.17 : x
  2. Step 2: Convert to fraction form
    1,165.19/1,747.10 = 580.17/x
  3. Step 3: Cross multiply
    1,165.19x = 1,747.10 × 580.17
  4. Step 4: Simplify right side
    1,165.19x = 1,013,616.46
  5. Step 5: Solve for x
    x = 1,013,616.46/1,165.19
  6. Step 6: Final answer
    x = 869.91

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1.5x scale

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.