Home / 1,473.80-2,029.20-1,252.40

Finding the Fourth Proportional to 1,473.80, 2,029.20 and 1,252.40

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Solution

The fourth proportional to 1,473.80, 2,029.20 and 1,252.40 is: 1,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.80 : 2,029.20 = 1,252.40 : x
  2. Step 2: Convert to fraction form
    1,473.80/2,029.20 = 1,252.40/x
  3. Step 3: Cross multiply
    1,473.80x = 2,029.20 × 1,252.40
  4. Step 4: Simplify right side
    1,473.80x = 2,541,370.08
  5. Step 5: Solve for x
    x = 2,541,370.08/1,473.80
  6. Step 6: Final answer
    x = 1,724.37

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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.