Home / 2,259.08-3,118.48-1,375.20

Finding the Fourth Proportional to 2,259.08, 3,118.48 and 1,375.20

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Solution

The fourth proportional to 2,259.08, 3,118.48 and 1,375.20 is: 1,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.08 : 3,118.48 = 1,375.20 : x
  2. Step 2: Convert to fraction form
    2,259.08/3,118.48 = 1,375.20/x
  3. Step 3: Cross multiply
    2,259.08x = 3,118.48 × 1,375.20
  4. Step 4: Simplify right side
    2,259.08x = 4,288,533.70
  5. Step 5: Solve for x
    x = 4,288,533.70/2,259.08
  6. Step 6: Final answer
    x = 1,898.35

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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.