Home / 2,939.26-4,053-2,232.40

Finding the Fourth Proportional to 2,939.26, 4,053 and 2,232.40

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Solution

The fourth proportional to 2,939.26, 4,053 and 2,232.40 is: 3,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.26 : 4,053 = 2,232.40 : x
  2. Step 2: Convert to fraction form
    2,939.26/4,053 = 2,232.40/x
  3. Step 3: Cross multiply
    2,939.26x = 4,053 × 2,232.40
  4. Step 4: Simplify right side
    2,939.26x = 9,047,917.20
  5. Step 5: Solve for x
    x = 9,047,917.20/2,939.26
  6. Step 6: Final answer
    x = 3,078.30

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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.