Home / 1,781.37-2,669.35-1,130.13

Finding the Fourth Proportional to 1,781.37, 2,669.35 and 1,130.13

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Solution

The fourth proportional to 1,781.37, 2,669.35 and 1,130.13 is: 1,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.37 : 2,669.35 = 1,130.13 : x
  2. Step 2: Convert to fraction form
    1,781.37/2,669.35 = 1,130.13/x
  3. Step 3: Cross multiply
    1,781.37x = 2,669.35 × 1,130.13
  4. Step 4: Simplify right side
    1,781.37x = 3,016,712.52
  5. Step 5: Solve for x
    x = 3,016,712.52/1,781.37
  6. Step 6: Final answer
    x = 1,693.48

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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.