Home / 5,248.85-7,858.55-2,778.08

Finding the Fourth Proportional to 5,248.85, 7,858.55 and 2,778.08

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Solution

The fourth proportional to 5,248.85, 7,858.55 and 2,778.08 is: 4,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.85 : 7,858.55 = 2,778.08 : x
  2. Step 2: Convert to fraction form
    5,248.85/7,858.55 = 2,778.08/x
  3. Step 3: Cross multiply
    5,248.85x = 7,858.55 × 2,778.08
  4. Step 4: Simplify right side
    5,248.85x = 21,831,627.40
  5. Step 5: Solve for x
    x = 21,831,627.40/5,248.85
  6. Step 6: Final answer
    x = 4,159.32

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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.