Home / 1,377.12-2,065.52-452.46

Finding the Fourth Proportional to 1,377.12, 2,065.52 and 452.46

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Solution

The fourth proportional to 1,377.12, 2,065.52 and 452.46 is: 678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.12 : 2,065.52 = 452.46 : x
  2. Step 2: Convert to fraction form
    1,377.12/2,065.52 = 452.46/x
  3. Step 3: Cross multiply
    1,377.12x = 2,065.52 × 452.46
  4. Step 4: Simplify right side
    1,377.12x = 934,565.18
  5. Step 5: Solve for x
    x = 934,565.18/1,377.12
  6. Step 6: Final answer
    x = 678.64

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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.