Home / 1,368.18-1,887.54-1,052.88

Finding the Fourth Proportional to 1,368.18, 1,887.54 and 1,052.88

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Solution

The fourth proportional to 1,368.18, 1,887.54 and 1,052.88 is: 1,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.18 : 1,887.54 = 1,052.88 : x
  2. Step 2: Convert to fraction form
    1,368.18/1,887.54 = 1,052.88/x
  3. Step 3: Cross multiply
    1,368.18x = 1,887.54 × 1,052.88
  4. Step 4: Simplify right side
    1,368.18x = 1,987,353.12
  5. Step 5: Solve for x
    x = 1,987,353.12/1,368.18
  6. Step 6: Final answer
    x = 1,452.55

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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.