Home / 5,119.08-7,683.17-2,655.60

Finding the Fourth Proportional to 5,119.08, 7,683.17 and 2,655.60

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Solution

The fourth proportional to 5,119.08, 7,683.17 and 2,655.60 is: 3,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.08 : 7,683.17 = 2,655.60 : x
  2. Step 2: Convert to fraction form
    5,119.08/7,683.17 = 2,655.60/x
  3. Step 3: Cross multiply
    5,119.08x = 7,683.17 × 2,655.60
  4. Step 4: Simplify right side
    5,119.08x = 20,403,426.25
  5. Step 5: Solve for x
    x = 20,403,426.25/5,119.08
  6. Step 6: Final answer
    x = 3,985.76

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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.