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Finding the Fourth Proportional to 5,328.97, 7,994.14 and 2,860.40

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Solution

The fourth proportional to 5,328.97, 7,994.14 and 2,860.40 is: 4,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.97 : 7,994.14 = 2,860.40 : x
  2. Step 2: Convert to fraction form
    5,328.97/7,994.14 = 2,860.40/x
  3. Step 3: Cross multiply
    5,328.97x = 7,994.14 × 2,860.40
  4. Step 4: Simplify right side
    5,328.97x = 22,866,450.89
  5. Step 5: Solve for x
    x = 22,866,450.89/5,328.97
  6. Step 6: Final answer
    x = 4,290.97

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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.