Home / 2,278.55-3,144.48-1,270.35

Finding the Fourth Proportional to 2,278.55, 3,144.48 and 1,270.35

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Solution

The fourth proportional to 2,278.55, 3,144.48 and 1,270.35 is: 1,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.55 : 3,144.48 = 1,270.35 : x
  2. Step 2: Convert to fraction form
    2,278.55/3,144.48 = 1,270.35/x
  3. Step 3: Cross multiply
    2,278.55x = 3,144.48 × 1,270.35
  4. Step 4: Simplify right side
    2,278.55x = 3,994,590.17
  5. Step 5: Solve for x
    x = 3,994,590.17/2,278.55
  6. Step 6: Final answer
    x = 1,753.13

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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.