Home / 3,151.23-4,727.33-1,042.20

Finding the Fourth Proportional to 3,151.23, 4,727.33 and 1,042.20

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Solution

The fourth proportional to 3,151.23, 4,727.33 and 1,042.20 is: 1,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.23 : 4,727.33 = 1,042.20 : x
  2. Step 2: Convert to fraction form
    3,151.23/4,727.33 = 1,042.20/x
  3. Step 3: Cross multiply
    3,151.23x = 4,727.33 × 1,042.20
  4. Step 4: Simplify right side
    3,151.23x = 4,926,818.12
  5. Step 5: Solve for x
    x = 4,926,818.12/3,151.23
  6. Step 6: Final answer
    x = 1,563.46

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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.