Home / 1,473.12-2,031.96-1,207.68

Finding the Fourth Proportional to 1,473.12, 2,031.96 and 1,207.68

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Solution

The fourth proportional to 1,473.12, 2,031.96 and 1,207.68 is: 1,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.12 : 2,031.96 = 1,207.68 : x
  2. Step 2: Convert to fraction form
    1,473.12/2,031.96 = 1,207.68/x
  3. Step 3: Cross multiply
    1,473.12x = 2,031.96 × 1,207.68
  4. Step 4: Simplify right side
    1,473.12x = 2,453,957.45
  5. Step 5: Solve for x
    x = 2,453,957.45/1,473.12
  6. Step 6: Final answer
    x = 1,665.82

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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.