Home / 6,258.60-8,640-3,902.04

Finding the Fourth Proportional to 6,258.60, 8,640 and 3,902.04

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Solution

The fourth proportional to 6,258.60, 8,640 and 3,902.04 is: 5,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.60 : 8,640 = 3,902.04 : x
  2. Step 2: Convert to fraction form
    6,258.60/8,640 = 3,902.04/x
  3. Step 3: Cross multiply
    6,258.60x = 8,640 × 3,902.04
  4. Step 4: Simplify right side
    6,258.60x = 33,713,625.60
  5. Step 5: Solve for x
    x = 33,713,625.60/6,258.60
  6. Step 6: Final answer
    x = 5,386.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.