Home / 3,323.84-4,985.78-1,587.20

Finding the Fourth Proportional to 3,323.84, 4,985.78 and 1,587.20

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Solution

The fourth proportional to 3,323.84, 4,985.78 and 1,587.20 is: 2,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.84 : 4,985.78 = 1,587.20 : x
  2. Step 2: Convert to fraction form
    3,323.84/4,985.78 = 1,587.20/x
  3. Step 3: Cross multiply
    3,323.84x = 4,985.78 × 1,587.20
  4. Step 4: Simplify right side
    3,323.84x = 7,913,397.15
  5. Step 5: Solve for x
    x = 7,913,397.15/3,323.84
  6. Step 6: Final answer
    x = 2,380.80

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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.