Home / 1,207.68-1,662.72-1,041.36

Finding the Fourth Proportional to 1,207.68, 1,662.72 and 1,041.36

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Solution

The fourth proportional to 1,207.68, 1,662.72 and 1,041.36 is: 1,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.68 : 1,662.72 = 1,041.36 : x
  2. Step 2: Convert to fraction form
    1,207.68/1,662.72 = 1,041.36/x
  3. Step 3: Cross multiply
    1,207.68x = 1,662.72 × 1,041.36
  4. Step 4: Simplify right side
    1,207.68x = 1,731,490.10
  5. Step 5: Solve for x
    x = 1,731,490.10/1,207.68
  6. Step 6: Final answer
    x = 1,433.73

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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.