Home / 4,878.70-7,323.45-3,031.90

Finding the Fourth Proportional to 4,878.70, 7,323.45 and 3,031.90

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Solution

The fourth proportional to 4,878.70, 7,323.45 and 3,031.90 is: 4,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.70 : 7,323.45 = 3,031.90 : x
  2. Step 2: Convert to fraction form
    4,878.70/7,323.45 = 3,031.90/x
  3. Step 3: Cross multiply
    4,878.70x = 7,323.45 × 3,031.90
  4. Step 4: Simplify right side
    4,878.70x = 22,203,968.06
  5. Step 5: Solve for x
    x = 22,203,968.06/4,878.70
  6. Step 6: Final answer
    x = 4,551.21

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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.