Home / 3,902.04-5,386.77-2,649.69

Finding the Fourth Proportional to 3,902.04, 5,386.77 and 2,649.69

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Solution

The fourth proportional to 3,902.04, 5,386.77 and 2,649.69 is: 3,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.04 : 5,386.77 = 2,649.69 : x
  2. Step 2: Convert to fraction form
    3,902.04/5,386.77 = 2,649.69/x
  3. Step 3: Cross multiply
    3,902.04x = 5,386.77 × 2,649.69
  4. Step 4: Simplify right side
    3,902.04x = 14,273,270.60
  5. Step 5: Solve for x
    x = 14,273,270.60/3,902.04
  6. Step 6: Final answer
    x = 3,657.90

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1.5x scale

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.