Home / 6,081.60-9,122.40-4,123.20

Finding the Fourth Proportional to 6,081.60, 9,122.40 and 4,123.20

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Solution

The fourth proportional to 6,081.60, 9,122.40 and 4,123.20 is: 6,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.60 : 9,122.40 = 4,123.20 : x
  2. Step 2: Convert to fraction form
    6,081.60/9,122.40 = 4,123.20/x
  3. Step 3: Cross multiply
    6,081.60x = 9,122.40 × 4,123.20
  4. Step 4: Simplify right side
    6,081.60x = 37,613,479.68
  5. Step 5: Solve for x
    x = 37,613,479.68/6,081.60
  6. Step 6: Final answer
    x = 6,184.80

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1.5x scale

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.