Home / 1,611.32-2,417.36-1,147.95

Finding the Fourth Proportional to 1,611.32, 2,417.36 and 1,147.95

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Solution

The fourth proportional to 1,611.32, 2,417.36 and 1,147.95 is: 1,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.32 : 2,417.36 = 1,147.95 : x
  2. Step 2: Convert to fraction form
    1,611.32/2,417.36 = 1,147.95/x
  3. Step 3: Cross multiply
    1,611.32x = 2,417.36 × 1,147.95
  4. Step 4: Simplify right side
    1,611.32x = 2,775,002.67
  5. Step 5: Solve for x
    x = 2,775,002.67/1,611.32
  6. Step 6: Final answer
    x = 1,722.20

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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.