Home / 2,253.26-3,118.02-1,921.16

Finding the Fourth Proportional to 2,253.26, 3,118.02 and 1,921.16

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Solution

The fourth proportional to 2,253.26, 3,118.02 and 1,921.16 is: 2,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.26 : 3,118.02 = 1,921.16 : x
  2. Step 2: Convert to fraction form
    2,253.26/3,118.02 = 1,921.16/x
  3. Step 3: Cross multiply
    2,253.26x = 3,118.02 × 1,921.16
  4. Step 4: Simplify right side
    2,253.26x = 5,990,215.30
  5. Step 5: Solve for x
    x = 5,990,215.30/2,253.26
  6. Step 6: Final answer
    x = 2,658.47

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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.