Home / 6,258.40-9,387.60-5,490.40

Finding the Fourth Proportional to 6,258.40, 9,387.60 and 5,490.40

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Solution

The fourth proportional to 6,258.40, 9,387.60 and 5,490.40 is: 8,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.40 : 9,387.60 = 5,490.40 : x
  2. Step 2: Convert to fraction form
    6,258.40/9,387.60 = 5,490.40/x
  3. Step 3: Cross multiply
    6,258.40x = 9,387.60 × 5,490.40
  4. Step 4: Simplify right side
    6,258.40x = 51,541,679.04
  5. Step 5: Solve for x
    x = 51,541,679.04/6,258.40
  6. Step 6: Final answer
    x = 8,235.60

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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.