Home / 2,254.50-3,117.69-2,151.36

Finding the Fourth Proportional to 2,254.50, 3,117.69 and 2,151.36

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Solution

The fourth proportional to 2,254.50, 3,117.69 and 2,151.36 is: 2,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.50 : 3,117.69 = 2,151.36 : x
  2. Step 2: Convert to fraction form
    2,254.50/3,117.69 = 2,151.36/x
  3. Step 3: Cross multiply
    2,254.50x = 3,117.69 × 2,151.36
  4. Step 4: Simplify right side
    2,254.50x = 6,707,273.56
  5. Step 5: Solve for x
    x = 6,707,273.56/2,254.50
  6. Step 6: Final answer
    x = 2,975.06

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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.