Home / 1,412.27-1,948.33-888.11

Finding the Fourth Proportional to 1,412.27, 1,948.33 and 888.11

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Solution

The fourth proportional to 1,412.27, 1,948.33 and 888.11 is: 1,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.27 : 1,948.33 = 888.11 : x
  2. Step 2: Convert to fraction form
    1,412.27/1,948.33 = 888.11/x
  3. Step 3: Cross multiply
    1,412.27x = 1,948.33 × 888.11
  4. Step 4: Simplify right side
    1,412.27x = 1,730,331.36
  5. Step 5: Solve for x
    x = 1,730,331.36/1,412.27
  6. Step 6: Final answer
    x = 1,225.21

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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.