Home / 1,551.91-2,325.80-1,139.11

Finding the Fourth Proportional to 1,551.91, 2,325.80 and 1,139.11

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Solution

The fourth proportional to 1,551.91, 2,325.80 and 1,139.11 is: 1,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.91 : 2,325.80 = 1,139.11 : x
  2. Step 2: Convert to fraction form
    1,551.91/2,325.80 = 1,139.11/x
  3. Step 3: Cross multiply
    1,551.91x = 2,325.80 × 1,139.11
  4. Step 4: Simplify right side
    1,551.91x = 2,649,342.04
  5. Step 5: Solve for x
    x = 2,649,342.04/1,551.91
  6. Step 6: Final answer
    x = 1,707.15

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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.