Home / 3,914.16-5,867.10-2,987.70

Finding the Fourth Proportional to 3,914.16, 5,867.10 and 2,987.70

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Solution

The fourth proportional to 3,914.16, 5,867.10 and 2,987.70 is: 4,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.16 : 5,867.10 = 2,987.70 : x
  2. Step 2: Convert to fraction form
    3,914.16/5,867.10 = 2,987.70/x
  3. Step 3: Cross multiply
    3,914.16x = 5,867.10 × 2,987.70
  4. Step 4: Simplify right side
    3,914.16x = 17,529,134.67
  5. Step 5: Solve for x
    x = 17,529,134.67/3,914.16
  6. Step 6: Final answer
    x = 4,478.39

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1.5x scale

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.