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Finding the Fourth Proportional to 6,275.36, 8,659.76 and 3,480.80

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Solution

The fourth proportional to 6,275.36, 8,659.76 and 3,480.80 is: 4,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.36 : 8,659.76 = 3,480.80 : x
  2. Step 2: Convert to fraction form
    6,275.36/8,659.76 = 3,480.80/x
  3. Step 3: Cross multiply
    6,275.36x = 8,659.76 × 3,480.80
  4. Step 4: Simplify right side
    6,275.36x = 30,142,892.61
  5. Step 5: Solve for x
    x = 30,142,892.61/6,275.36
  6. Step 6: Final answer
    x = 4,803.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.