Home / 3,154.56-4,352.34-1,827.78

Finding the Fourth Proportional to 3,154.56, 4,352.34 and 1,827.78

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Solution

The fourth proportional to 3,154.56, 4,352.34 and 1,827.78 is: 2,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.56 : 4,352.34 = 1,827.78 : x
  2. Step 2: Convert to fraction form
    3,154.56/4,352.34 = 1,827.78/x
  3. Step 3: Cross multiply
    3,154.56x = 4,352.34 × 1,827.78
  4. Step 4: Simplify right side
    3,154.56x = 7,955,120.01
  5. Step 5: Solve for x
    x = 7,955,120.01/3,154.56
  6. Step 6: Final answer
    x = 2,521.78

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1.5x scale

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.