Home / 4,172.40-6,258.60-2,713.20

Finding the Fourth Proportional to 4,172.40, 6,258.60 and 2,713.20

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Solution

The fourth proportional to 4,172.40, 6,258.60 and 2,713.20 is: 4,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.40 : 6,258.60 = 2,713.20 : x
  2. Step 2: Convert to fraction form
    4,172.40/6,258.60 = 2,713.20/x
  3. Step 3: Cross multiply
    4,172.40x = 6,258.60 × 2,713.20
  4. Step 4: Simplify right side
    4,172.40x = 16,980,833.52
  5. Step 5: Solve for x
    x = 16,980,833.52/4,172.40
  6. Step 6: Final answer
    x = 4,069.80

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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.