Home / 3,891.24-5,368.28-2,319.03

Finding the Fourth Proportional to 3,891.24, 5,368.28 and 2,319.03

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Solution

The fourth proportional to 3,891.24, 5,368.28 and 2,319.03 is: 3,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.24 : 5,368.28 = 2,319.03 : x
  2. Step 2: Convert to fraction form
    3,891.24/5,368.28 = 2,319.03/x
  3. Step 3: Cross multiply
    3,891.24x = 5,368.28 × 2,319.03
  4. Step 4: Simplify right side
    3,891.24x = 12,449,190.77
  5. Step 5: Solve for x
    x = 12,449,190.77/3,891.24
  6. Step 6: Final answer
    x = 3,199.29

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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.