Home / 5,721.90-8,579.80-2,947.44

Finding the Fourth Proportional to 5,721.90, 8,579.80 and 2,947.44

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Solution

The fourth proportional to 5,721.90, 8,579.80 and 2,947.44 is: 4,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.90 : 8,579.80 = 2,947.44 : x
  2. Step 2: Convert to fraction form
    5,721.90/8,579.80 = 2,947.44/x
  3. Step 3: Cross multiply
    5,721.90x = 8,579.80 × 2,947.44
  4. Step 4: Simplify right side
    5,721.90x = 25,288,445.71
  5. Step 5: Solve for x
    x = 25,288,445.71/5,721.90
  6. Step 6: Final answer
    x = 4,419.59

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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.