Home / 6,377.38-8,800.64-3,688.40

Finding the Fourth Proportional to 6,377.38, 8,800.64 and 3,688.40

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Solution

The fourth proportional to 6,377.38, 8,800.64 and 3,688.40 is: 5,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.38 : 8,800.64 = 3,688.40 : x
  2. Step 2: Convert to fraction form
    6,377.38/8,800.64 = 3,688.40/x
  3. Step 3: Cross multiply
    6,377.38x = 8,800.64 × 3,688.40
  4. Step 4: Simplify right side
    6,377.38x = 32,460,236.57
  5. Step 5: Solve for x
    x = 32,460,236.57/6,377.38
  6. Step 6: Final answer
    x = 5,089.90

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Half scale
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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.