Home / 4,318.92-6,478.65-2,931.66

Finding the Fourth Proportional to 4,318.92, 6,478.65 and 2,931.66

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Solution

The fourth proportional to 4,318.92, 6,478.65 and 2,931.66 is: 4,397.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318.92 : 6,478.65 = 2,931.66 : x
  2. Step 2: Convert to fraction form
    4,318.92/6,478.65 = 2,931.66/x
  3. Step 3: Cross multiply
    4,318.92x = 6,478.65 × 2,931.66
  4. Step 4: Simplify right side
    4,318.92x = 18,993,199.06
  5. Step 5: Solve for x
    x = 18,993,199.06/4,318.92
  6. Step 6: Final answer
    x = 4,397.67

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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.