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Finding the Fourth Proportional to 5,328.42, 7,992.58 and 2,988.42

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Solution

The fourth proportional to 5,328.42, 7,992.58 and 2,988.42 is: 4,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.42 : 7,992.58 = 2,988.42 : x
  2. Step 2: Convert to fraction form
    5,328.42/7,992.58 = 2,988.42/x
  3. Step 3: Cross multiply
    5,328.42x = 7,992.58 × 2,988.42
  4. Step 4: Simplify right side
    5,328.42x = 23,885,185.92
  5. Step 5: Solve for x
    x = 23,885,185.92/5,328.42
  6. Step 6: Final answer
    x = 4,482.60

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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.