Home / 3,869.40-5,333.91-2,376.15

Finding the Fourth Proportional to 3,869.40, 5,333.91 and 2,376.15

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Solution

The fourth proportional to 3,869.40, 5,333.91 and 2,376.15 is: 3,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.40 : 5,333.91 = 2,376.15 : x
  2. Step 2: Convert to fraction form
    3,869.40/5,333.91 = 2,376.15/x
  3. Step 3: Cross multiply
    3,869.40x = 5,333.91 × 2,376.15
  4. Step 4: Simplify right side
    3,869.40x = 12,674,170.25
  5. Step 5: Solve for x
    x = 12,674,170.25/3,869.40
  6. Step 6: Final answer
    x = 3,275.49

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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.