Home / 4,124.40-5,693.85-3,178.11

Finding the Fourth Proportional to 4,124.40, 5,693.85 and 3,178.11

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Solution

The fourth proportional to 4,124.40, 5,693.85 and 3,178.11 is: 4,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,124.40 : 5,693.85 = 3,178.11 : x
  2. Step 2: Convert to fraction form
    4,124.40/5,693.85 = 3,178.11/x
  3. Step 3: Cross multiply
    4,124.40x = 5,693.85 × 3,178.11
  4. Step 4: Simplify right side
    4,124.40x = 18,095,683.12
  5. Step 5: Solve for x
    x = 18,095,683.12/4,124.40
  6. Step 6: Final answer
    x = 4,387.47

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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.