Home / 6,403.85-8,838.18-3,752.31

Finding the Fourth Proportional to 6,403.85, 8,838.18 and 3,752.31

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Solution

The fourth proportional to 6,403.85, 8,838.18 and 3,752.31 is: 5,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.85 : 8,838.18 = 3,752.31 : x
  2. Step 2: Convert to fraction form
    6,403.85/8,838.18 = 3,752.31/x
  3. Step 3: Cross multiply
    6,403.85x = 8,838.18 × 3,752.31
  4. Step 4: Simplify right side
    6,403.85x = 33,163,591.20
  5. Step 5: Solve for x
    x = 33,163,591.20/6,403.85
  6. Step 6: Final answer
    x = 5,178.70

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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.