Home / 3,956.80-5,460.93-2,278.18

Finding the Fourth Proportional to 3,956.80, 5,460.93 and 2,278.18

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Solution

The fourth proportional to 3,956.80, 5,460.93 and 2,278.18 is: 3,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.80 : 5,460.93 = 2,278.18 : x
  2. Step 2: Convert to fraction form
    3,956.80/5,460.93 = 2,278.18/x
  3. Step 3: Cross multiply
    3,956.80x = 5,460.93 × 2,278.18
  4. Step 4: Simplify right side
    3,956.80x = 12,440,981.51
  5. Step 5: Solve for x
    x = 12,440,981.51/3,956.80
  6. Step 6: Final answer
    x = 3,144.20

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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.