Home / 4,043.60-5,579.78-2,275.16

Finding the Fourth Proportional to 4,043.60, 5,579.78 and 2,275.16

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Solution

The fourth proportional to 4,043.60, 5,579.78 and 2,275.16 is: 3,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,043.60 : 5,579.78 = 2,275.16 : x
  2. Step 2: Convert to fraction form
    4,043.60/5,579.78 = 2,275.16/x
  3. Step 3: Cross multiply
    4,043.60x = 5,579.78 × 2,275.16
  4. Step 4: Simplify right side
    4,043.60x = 12,694,892.26
  5. Step 5: Solve for x
    x = 12,694,892.26/4,043.60
  6. Step 6: Final answer
    x = 3,139.50

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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.