Home / 3,272.40-4,908.60-3,130.20

Finding the Fourth Proportional to 3,272.40, 4,908.60 and 3,130.20

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Solution

The fourth proportional to 3,272.40, 4,908.60 and 3,130.20 is: 4,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.40 : 4,908.60 = 3,130.20 : x
  2. Step 2: Convert to fraction form
    3,272.40/4,908.60 = 3,130.20/x
  3. Step 3: Cross multiply
    3,272.40x = 4,908.60 × 3,130.20
  4. Step 4: Simplify right side
    3,272.40x = 15,364,899.72
  5. Step 5: Solve for x
    x = 15,364,899.72/3,272.40
  6. Step 6: Final answer
    x = 4,695.30

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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.