Home / 4,122.45-5,689.31-2,551.05

Finding the Fourth Proportional to 4,122.45, 5,689.31 and 2,551.05

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Solution

The fourth proportional to 4,122.45, 5,689.31 and 2,551.05 is: 3,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.45 : 5,689.31 = 2,551.05 : x
  2. Step 2: Convert to fraction form
    4,122.45/5,689.31 = 2,551.05/x
  3. Step 3: Cross multiply
    4,122.45x = 5,689.31 × 2,551.05
  4. Step 4: Simplify right side
    4,122.45x = 14,513,701.52
  5. Step 5: Solve for x
    x = 14,513,701.52/4,122.45
  6. Step 6: Final answer
    x = 3,520.65

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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.