Home / 3,151.68-4,727.36-1,302.88

Finding the Fourth Proportional to 3,151.68, 4,727.36 and 1,302.88

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Solution

The fourth proportional to 3,151.68, 4,727.36 and 1,302.88 is: 1,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.68 : 4,727.36 = 1,302.88 : x
  2. Step 2: Convert to fraction form
    3,151.68/4,727.36 = 1,302.88/x
  3. Step 3: Cross multiply
    3,151.68x = 4,727.36 × 1,302.88
  4. Step 4: Simplify right side
    3,151.68x = 6,159,182.80
  5. Step 5: Solve for x
    x = 6,159,182.80/3,151.68
  6. Step 6: Final answer
    x = 1,954.25

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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.