Home / 1,165.12-1,748.45-434.70

Finding the Fourth Proportional to 1,165.12, 1,748.45 and 434.70

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Solution

The fourth proportional to 1,165.12, 1,748.45 and 434.70 is: 652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.12 : 1,748.45 = 434.70 : x
  2. Step 2: Convert to fraction form
    1,165.12/1,748.45 = 434.70/x
  3. Step 3: Cross multiply
    1,165.12x = 1,748.45 × 434.70
  4. Step 4: Simplify right side
    1,165.12x = 760,052.30
  5. Step 5: Solve for x
    x = 760,052.30/1,165.12
  6. Step 6: Final answer
    x = 652.34

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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.