Home / 5,291.09-7,937.03-1,781.10

Finding the Fourth Proportional to 5,291.09, 7,937.03 and 1,781.10

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Solution

The fourth proportional to 5,291.09, 7,937.03 and 1,781.10 is: 2,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.09 : 7,937.03 = 1,781.10 : x
  2. Step 2: Convert to fraction form
    5,291.09/7,937.03 = 1,781.10/x
  3. Step 3: Cross multiply
    5,291.09x = 7,937.03 × 1,781.10
  4. Step 4: Simplify right side
    5,291.09x = 14,136,644.13
  5. Step 5: Solve for x
    x = 14,136,644.13/5,291.09
  6. Step 6: Final answer
    x = 2,671.79

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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.