Home / 5,637.05-7,778.63-3,119.12

Finding the Fourth Proportional to 5,637.05, 7,778.63 and 3,119.12

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Solution

The fourth proportional to 5,637.05, 7,778.63 and 3,119.12 is: 4,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.05 : 7,778.63 = 3,119.12 : x
  2. Step 2: Convert to fraction form
    5,637.05/7,778.63 = 3,119.12/x
  3. Step 3: Cross multiply
    5,637.05x = 7,778.63 × 3,119.12
  4. Step 4: Simplify right side
    5,637.05x = 24,262,449.31
  5. Step 5: Solve for x
    x = 24,262,449.31/5,637.05
  6. Step 6: Final answer
    x = 4,304.11

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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.