Home / 6,119.20-9,178.80-1,502.20

Finding the Fourth Proportional to 6,119.20, 9,178.80 and 1,502.20

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Solution

The fourth proportional to 6,119.20, 9,178.80 and 1,502.20 is: 2,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.20 : 9,178.80 = 1,502.20 : x
  2. Step 2: Convert to fraction form
    6,119.20/9,178.80 = 1,502.20/x
  3. Step 3: Cross multiply
    6,119.20x = 9,178.80 × 1,502.20
  4. Step 4: Simplify right side
    6,119.20x = 13,788,393.36
  5. Step 5: Solve for x
    x = 13,788,393.36/6,119.20
  6. Step 6: Final answer
    x = 2,253.30

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Double scale
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Similar ratio
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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.