Home / 6,557.40-9,048.78-4,039.20

Finding the Fourth Proportional to 6,557.40, 9,048.78 and 4,039.20

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Solution

The fourth proportional to 6,557.40, 9,048.78 and 4,039.20 is: 5,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,557.40 : 9,048.78 = 4,039.20 : x
  2. Step 2: Convert to fraction form
    6,557.40/9,048.78 = 4,039.20/x
  3. Step 3: Cross multiply
    6,557.40x = 9,048.78 × 4,039.20
  4. Step 4: Simplify right side
    6,557.40x = 36,549,832.18
  5. Step 5: Solve for x
    x = 36,549,832.18/6,557.40
  6. Step 6: Final answer
    x = 5,573.83

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Similar ratio
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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.