Home / 1,242.24-1,874.63-1,200.93

Finding the Fourth Proportional to 1,242.24, 1,874.63 and 1,200.93

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Solution

The fourth proportional to 1,242.24, 1,874.63 and 1,200.93 is: 1,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.24 : 1,874.63 = 1,200.93 : x
  2. Step 2: Convert to fraction form
    1,242.24/1,874.63 = 1,200.93/x
  3. Step 3: Cross multiply
    1,242.24x = 1,874.63 × 1,200.93
  4. Step 4: Simplify right side
    1,242.24x = 2,251,293.40
  5. Step 5: Solve for x
    x = 2,251,293.40/1,242.24
  6. Step 6: Final answer
    x = 1,812.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.