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Finding the Fourth Proportional to 6,684.40, 10,030.20 and 2,987.20

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Solution

The fourth proportional to 6,684.40, 10,030.20 and 2,987.20 is: 4,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,684.40 : 10,030.20 = 2,987.20 : x
  2. Step 2: Convert to fraction form
    6,684.40/10,030.20 = 2,987.20/x
  3. Step 3: Cross multiply
    6,684.40x = 10,030.20 × 2,987.20
  4. Step 4: Simplify right side
    6,684.40x = 29,962,213.44
  5. Step 5: Solve for x
    x = 29,962,213.44/6,684.40
  6. Step 6: Final answer
    x = 4,482.41

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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.