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Finding the Fourth Proportional to 3,957.03, 5,460.81 and 2,278.98

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Solution

The fourth proportional to 3,957.03, 5,460.81 and 2,278.98 is: 3,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.03 : 5,460.81 = 2,278.98 : x
  2. Step 2: Convert to fraction form
    3,957.03/5,460.81 = 2,278.98/x
  3. Step 3: Cross multiply
    3,957.03x = 5,460.81 × 2,278.98
  4. Step 4: Simplify right side
    3,957.03x = 12,445,076.77
  5. Step 5: Solve for x
    x = 12,445,076.77/3,957.03
  6. Step 6: Final answer
    x = 3,145.05

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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.