Home / 3,118.20-4,298.92-2,585.08

Finding the Fourth Proportional to 3,118.20, 4,298.92 and 2,585.08

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Solution

The fourth proportional to 3,118.20, 4,298.92 and 2,585.08 is: 3,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.20 : 4,298.92 = 2,585.08 : x
  2. Step 2: Convert to fraction form
    3,118.20/4,298.92 = 2,585.08/x
  3. Step 3: Cross multiply
    3,118.20x = 4,298.92 × 2,585.08
  4. Step 4: Simplify right side
    3,118.20x = 11,113,052.11
  5. Step 5: Solve for x
    x = 11,113,052.11/3,118.20
  6. Step 6: Final answer
    x = 3,563.93

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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.