Home / 2,259.59-3,119.18-1,375.70

Finding the Fourth Proportional to 2,259.59, 3,119.18 and 1,375.70

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Solution

The fourth proportional to 2,259.59, 3,119.18 and 1,375.70 is: 1,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.59 : 3,119.18 = 1,375.70 : x
  2. Step 2: Convert to fraction form
    2,259.59/3,119.18 = 1,375.70/x
  3. Step 3: Cross multiply
    2,259.59x = 3,119.18 × 1,375.70
  4. Step 4: Simplify right side
    2,259.59x = 4,291,033.45
  5. Step 5: Solve for x
    x = 4,291,033.45/2,259.59
  6. Step 6: Final answer
    x = 1,899.04

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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.