Home / 2,180.11-3,268.18-947.08

Finding the Fourth Proportional to 2,180.11, 3,268.18 and 947.08

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Solution

The fourth proportional to 2,180.11, 3,268.18 and 947.08 is: 1,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.11 : 3,268.18 = 947.08 : x
  2. Step 2: Convert to fraction form
    2,180.11/3,268.18 = 947.08/x
  3. Step 3: Cross multiply
    2,180.11x = 3,268.18 × 947.08
  4. Step 4: Simplify right side
    2,180.11x = 3,095,215.01
  5. Step 5: Solve for x
    x = 3,095,215.01/2,180.11
  6. Step 6: Final answer
    x = 1,419.75

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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.