Home / 5,130.11-7,696.46-1,432.34

Finding the Fourth Proportional to 5,130.11, 7,696.46 and 1,432.34

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Solution

The fourth proportional to 5,130.11, 7,696.46 and 1,432.34 is: 2,148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.11 : 7,696.46 = 1,432.34 : x
  2. Step 2: Convert to fraction form
    5,130.11/7,696.46 = 1,432.34/x
  3. Step 3: Cross multiply
    5,130.11x = 7,696.46 × 1,432.34
  4. Step 4: Simplify right side
    5,130.11x = 11,023,947.52
  5. Step 5: Solve for x
    x = 11,023,947.52/5,130.11
  6. Step 6: Final answer
    x = 2,148.87

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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.