Home / 1,247.89-1,873.48-1,001.23

Finding the Fourth Proportional to 1,247.89, 1,873.48 and 1,001.23

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Solution

The fourth proportional to 1,247.89, 1,873.48 and 1,001.23 is: 1,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.89 : 1,873.48 = 1,001.23 : x
  2. Step 2: Convert to fraction form
    1,247.89/1,873.48 = 1,001.23/x
  3. Step 3: Cross multiply
    1,247.89x = 1,873.48 × 1,001.23
  4. Step 4: Simplify right side
    1,247.89x = 1,875,780.95
  5. Step 5: Solve for x
    x = 1,875,780.95/1,247.89
  6. Step 6: Final answer
    x = 1,503.17

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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.