Home / 1,250.09-1,875.15-384.38

Finding the Fourth Proportional to 1,250.09, 1,875.15 and 384.38

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Solution

The fourth proportional to 1,250.09, 1,875.15 and 384.38 is: 576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.09 : 1,875.15 = 384.38 : x
  2. Step 2: Convert to fraction form
    1,250.09/1,875.15 = 384.38/x
  3. Step 3: Cross multiply
    1,250.09x = 1,875.15 × 384.38
  4. Step 4: Simplify right side
    1,250.09x = 720,760.78
  5. Step 5: Solve for x
    x = 720,760.78/1,250.09
  6. Step 6: Final answer
    x = 576.57

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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.