Home / 3,128.76-4,687.34-1,566.95

Finding the Fourth Proportional to 3,128.76, 4,687.34 and 1,566.95

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Solution

The fourth proportional to 3,128.76, 4,687.34 and 1,566.95 is: 2,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.76 : 4,687.34 = 1,566.95 : x
  2. Step 2: Convert to fraction form
    3,128.76/4,687.34 = 1,566.95/x
  3. Step 3: Cross multiply
    3,128.76x = 4,687.34 × 1,566.95
  4. Step 4: Simplify right side
    3,128.76x = 7,344,796.14
  5. Step 5: Solve for x
    x = 7,344,796.14/3,128.76
  6. Step 6: Final answer
    x = 2,347.51

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1.5x scale

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.