Home / 3,931.46-5,423.16-2,358.62

Finding the Fourth Proportional to 3,931.46, 5,423.16 and 2,358.62

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Solution

The fourth proportional to 3,931.46, 5,423.16 and 2,358.62 is: 3,253.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.46 : 5,423.16 = 2,358.62 : x
  2. Step 2: Convert to fraction form
    3,931.46/5,423.16 = 2,358.62/x
  3. Step 3: Cross multiply
    3,931.46x = 5,423.16 × 2,358.62
  4. Step 4: Simplify right side
    3,931.46x = 12,791,173.64
  5. Step 5: Solve for x
    x = 12,791,173.64/3,931.46
  6. Step 6: Final answer
    x = 3,253.54

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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.