Home / 6,421.95-9,631.56-2,724.30

Finding the Fourth Proportional to 6,421.95, 9,631.56 and 2,724.30

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Solution

The fourth proportional to 6,421.95, 9,631.56 and 2,724.30 is: 4,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.95 : 9,631.56 = 2,724.30 : x
  2. Step 2: Convert to fraction form
    6,421.95/9,631.56 = 2,724.30/x
  3. Step 3: Cross multiply
    6,421.95x = 9,631.56 × 2,724.30
  4. Step 4: Simplify right side
    6,421.95x = 26,239,258.91
  5. Step 5: Solve for x
    x = 26,239,258.91/6,421.95
  6. Step 6: Final answer
    x = 4,085.87

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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.