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Finding the Fourth Proportional to 2,848.59, 3,958.20 and 2,818.17

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Solution

The fourth proportional to 2,848.59, 3,958.20 and 2,818.17 is: 3,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.59 : 3,958.20 = 2,818.17 : x
  2. Step 2: Convert to fraction form
    2,848.59/3,958.20 = 2,818.17/x
  3. Step 3: Cross multiply
    2,848.59x = 3,958.20 × 2,818.17
  4. Step 4: Simplify right side
    2,848.59x = 11,154,880.49
  5. Step 5: Solve for x
    x = 11,154,880.49/2,848.59
  6. Step 6: Final answer
    x = 3,915.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.