Home / 4,387.36-6,581.04-1,309.12

Finding the Fourth Proportional to 4,387.36, 6,581.04 and 1,309.12

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Solution

The fourth proportional to 4,387.36, 6,581.04 and 1,309.12 is: 1,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.36 : 6,581.04 = 1,309.12 : x
  2. Step 2: Convert to fraction form
    4,387.36/6,581.04 = 1,309.12/x
  3. Step 3: Cross multiply
    4,387.36x = 6,581.04 × 1,309.12
  4. Step 4: Simplify right side
    4,387.36x = 8,615,371.08
  5. Step 5: Solve for x
    x = 8,615,371.08/4,387.36
  6. Step 6: Final answer
    x = 1,963.68

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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.