Home / 4,322.20-6,483.30-4,257.40

Finding the Fourth Proportional to 4,322.20, 6,483.30 and 4,257.40

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Solution

The fourth proportional to 4,322.20, 6,483.30 and 4,257.40 is: 6,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.20 : 6,483.30 = 4,257.40 : x
  2. Step 2: Convert to fraction form
    4,322.20/6,483.30 = 4,257.40/x
  3. Step 3: Cross multiply
    4,322.20x = 6,483.30 × 4,257.40
  4. Step 4: Simplify right side
    4,322.20x = 27,602,001.42
  5. Step 5: Solve for x
    x = 27,602,001.42/4,322.20
  6. Step 6: Final answer
    x = 6,386.10

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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.