Home / 2,759.20-4,140.18-1,718.88

Finding the Fourth Proportional to 2,759.20, 4,140.18 and 1,718.88

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Solution

The fourth proportional to 2,759.20, 4,140.18 and 1,718.88 is: 2,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.20 : 4,140.18 = 1,718.88 : x
  2. Step 2: Convert to fraction form
    2,759.20/4,140.18 = 1,718.88/x
  3. Step 3: Cross multiply
    2,759.20x = 4,140.18 × 1,718.88
  4. Step 4: Simplify right side
    2,759.20x = 7,116,472.60
  5. Step 5: Solve for x
    x = 7,116,472.60/2,759.20
  6. Step 6: Final answer
    x = 2,579.18

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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.