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Finding the Fourth Proportional to 7,242.84, 10,859.40 and 3,952.80

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Solution

The fourth proportional to 7,242.84, 10,859.40 and 3,952.80 is: 5,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.84 : 10,859.40 = 3,952.80 : x
  2. Step 2: Convert to fraction form
    7,242.84/10,859.40 = 3,952.80/x
  3. Step 3: Cross multiply
    7,242.84x = 10,859.40 × 3,952.80
  4. Step 4: Simplify right side
    7,242.84x = 42,925,036.32
  5. Step 5: Solve for x
    x = 42,925,036.32/7,242.84
  6. Step 6: Final answer
    x = 5,926.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.