Home / 1,349.29-1,862.93-845.91

Finding the Fourth Proportional to 1,349.29, 1,862.93 and 845.91

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Solution

The fourth proportional to 1,349.29, 1,862.93 and 845.91 is: 1,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.29 : 1,862.93 = 845.91 : x
  2. Step 2: Convert to fraction form
    1,349.29/1,862.93 = 845.91/x
  3. Step 3: Cross multiply
    1,349.29x = 1,862.93 × 845.91
  4. Step 4: Simplify right side
    1,349.29x = 1,575,871.12
  5. Step 5: Solve for x
    x = 1,575,871.12/1,349.29
  6. Step 6: Final answer
    x = 1,167.93

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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.