Home / 5,389.38-7,437.11-2,999.48

Finding the Fourth Proportional to 5,389.38, 7,437.11 and 2,999.48

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Solution

The fourth proportional to 5,389.38, 7,437.11 and 2,999.48 is: 4,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.38 : 7,437.11 = 2,999.48 : x
  2. Step 2: Convert to fraction form
    5,389.38/7,437.11 = 2,999.48/x
  3. Step 3: Cross multiply
    5,389.38x = 7,437.11 × 2,999.48
  4. Step 4: Simplify right side
    5,389.38x = 22,307,410.52
  5. Step 5: Solve for x
    x = 22,307,410.52/5,389.38
  6. Step 6: Final answer
    x = 4,139.14

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1.5x scale

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.