Home / 1,349.70-1,862.13-845.22

Finding the Fourth Proportional to 1,349.70, 1,862.13 and 845.22

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Solution

The fourth proportional to 1,349.70, 1,862.13 and 845.22 is: 1,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.70 : 1,862.13 = 845.22 : x
  2. Step 2: Convert to fraction form
    1,349.70/1,862.13 = 845.22/x
  3. Step 3: Cross multiply
    1,349.70x = 1,862.13 × 845.22
  4. Step 4: Simplify right side
    1,349.70x = 1,573,909.52
  5. Step 5: Solve for x
    x = 1,573,909.52/1,349.70
  6. Step 6: Final answer
    x = 1,166.12

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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.