Home / 3,875.11-5,812.80-1,242.69

Finding the Fourth Proportional to 3,875.11, 5,812.80 and 1,242.69

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Solution

The fourth proportional to 3,875.11, 5,812.80 and 1,242.69 is: 1,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.11 : 5,812.80 = 1,242.69 : x
  2. Step 2: Convert to fraction form
    3,875.11/5,812.80 = 1,242.69/x
  3. Step 3: Cross multiply
    3,875.11x = 5,812.80 × 1,242.69
  4. Step 4: Simplify right side
    3,875.11x = 7,223,508.43
  5. Step 5: Solve for x
    x = 7,223,508.43/3,875.11
  6. Step 6: Final answer
    x = 1,864.08

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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.