Home / 2,770.60-4,152.31-1,125.24

Finding the Fourth Proportional to 2,770.60, 4,152.31 and 1,125.24

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Solution

The fourth proportional to 2,770.60, 4,152.31 and 1,125.24 is: 1,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.60 : 4,152.31 = 1,125.24 : x
  2. Step 2: Convert to fraction form
    2,770.60/4,152.31 = 1,125.24/x
  3. Step 3: Cross multiply
    2,770.60x = 4,152.31 × 1,125.24
  4. Step 4: Simplify right side
    2,770.60x = 4,672,333.25
  5. Step 5: Solve for x
    x = 4,672,333.25/2,770.60
  6. Step 6: Final answer
    x = 1,686.40

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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.