Home / 5,490.14-7,576.40-2,972.25

Finding the Fourth Proportional to 5,490.14, 7,576.40 and 2,972.25

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Solution

The fourth proportional to 5,490.14, 7,576.40 and 2,972.25 is: 4,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.14 : 7,576.40 = 2,972.25 : x
  2. Step 2: Convert to fraction form
    5,490.14/7,576.40 = 2,972.25/x
  3. Step 3: Cross multiply
    5,490.14x = 7,576.40 × 2,972.25
  4. Step 4: Simplify right side
    5,490.14x = 22,518,990.11
  5. Step 5: Solve for x
    x = 22,518,990.11/5,490.14
  6. Step 6: Final answer
    x = 4,101.71

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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.