Home / 1,566.20-2,156.43-1,329.66

Finding the Fourth Proportional to 1,566.20, 2,156.43 and 1,329.66

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Solution

The fourth proportional to 1,566.20, 2,156.43 and 1,329.66 is: 1,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.20 : 2,156.43 = 1,329.66 : x
  2. Step 2: Convert to fraction form
    1,566.20/2,156.43 = 1,329.66/x
  3. Step 3: Cross multiply
    1,566.20x = 2,156.43 × 1,329.66
  4. Step 4: Simplify right side
    1,566.20x = 2,867,315.61
  5. Step 5: Solve for x
    x = 2,867,315.61/1,566.20
  6. Step 6: Final answer
    x = 1,830.75

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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.