Home / 4,043.80-5,580.21-2,275.30

Finding the Fourth Proportional to 4,043.80, 5,580.21 and 2,275.30

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Solution

The fourth proportional to 4,043.80, 5,580.21 and 2,275.30 is: 3,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,043.80 : 5,580.21 = 2,275.30 : x
  2. Step 2: Convert to fraction form
    4,043.80/5,580.21 = 2,275.30/x
  3. Step 3: Cross multiply
    4,043.80x = 5,580.21 × 2,275.30
  4. Step 4: Simplify right side
    4,043.80x = 12,696,651.81
  5. Step 5: Solve for x
    x = 12,696,651.81/4,043.80
  6. Step 6: Final answer
    x = 3,139.78

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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.