Home / 5,490.28-7,570.83-4,149.04

Finding the Fourth Proportional to 5,490.28, 7,570.83 and 4,149.04

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Solution

The fourth proportional to 5,490.28, 7,570.83 and 4,149.04 is: 5,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.28 : 7,570.83 = 4,149.04 : x
  2. Step 2: Convert to fraction form
    5,490.28/7,570.83 = 4,149.04/x
  3. Step 3: Cross multiply
    5,490.28x = 7,570.83 × 4,149.04
  4. Step 4: Simplify right side
    5,490.28x = 31,411,676.50
  5. Step 5: Solve for x
    x = 31,411,676.50/5,490.28
  6. Step 6: Final answer
    x = 5,721.33

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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.