Home / 2,881.55-3,975.36-2,127.13

Finding the Fourth Proportional to 2,881.55, 3,975.36 and 2,127.13

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Solution

The fourth proportional to 2,881.55, 3,975.36 and 2,127.13 is: 2,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.55 : 3,975.36 = 2,127.13 : x
  2. Step 2: Convert to fraction form
    2,881.55/3,975.36 = 2,127.13/x
  3. Step 3: Cross multiply
    2,881.55x = 3,975.36 × 2,127.13
  4. Step 4: Simplify right side
    2,881.55x = 8,456,123.93
  5. Step 5: Solve for x
    x = 8,456,123.93/2,881.55
  6. Step 6: Final answer
    x = 2,934.58

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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.