Home / 1,148.72-1,723.80-1,074.92

Finding the Fourth Proportional to 1,148.72, 1,723.80 and 1,074.92

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Solution

The fourth proportional to 1,148.72, 1,723.80 and 1,074.92 is: 1,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.72 : 1,723.80 = 1,074.92 : x
  2. Step 2: Convert to fraction form
    1,148.72/1,723.80 = 1,074.92/x
  3. Step 3: Cross multiply
    1,148.72x = 1,723.80 × 1,074.92
  4. Step 4: Simplify right side
    1,148.72x = 1,852,947.10
  5. Step 5: Solve for x
    x = 1,852,947.10/1,148.72
  6. Step 6: Final answer
    x = 1,613.05

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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.