Home / 2,877.16-3,973.38-2,255.08

Finding the Fourth Proportional to 2,877.16, 3,973.38 and 2,255.08

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Solution

The fourth proportional to 2,877.16, 3,973.38 and 2,255.08 is: 3,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.16 : 3,973.38 = 2,255.08 : x
  2. Step 2: Convert to fraction form
    2,877.16/3,973.38 = 2,255.08/x
  3. Step 3: Cross multiply
    2,877.16x = 3,973.38 × 2,255.08
  4. Step 4: Simplify right side
    2,877.16x = 8,960,289.77
  5. Step 5: Solve for x
    x = 8,960,289.77/2,877.16
  6. Step 6: Final answer
    x = 3,114.28

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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.