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Finding the Fourth Proportional to 4,991.42, 6,888.02 and 2,753.28

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Solution

The fourth proportional to 4,991.42, 6,888.02 and 2,753.28 is: 3,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.42 : 6,888.02 = 2,753.28 : x
  2. Step 2: Convert to fraction form
    4,991.42/6,888.02 = 2,753.28/x
  3. Step 3: Cross multiply
    4,991.42x = 6,888.02 × 2,753.28
  4. Step 4: Simplify right side
    4,991.42x = 18,964,647.71
  5. Step 5: Solve for x
    x = 18,964,647.71/4,991.42
  6. Step 6: Final answer
    x = 3,799.45

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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.