Home / 3,902.09-5,384.90-2,330.15

Finding the Fourth Proportional to 3,902.09, 5,384.90 and 2,330.15

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Solution

The fourth proportional to 3,902.09, 5,384.90 and 2,330.15 is: 3,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.09 : 5,384.90 = 2,330.15 : x
  2. Step 2: Convert to fraction form
    3,902.09/5,384.90 = 2,330.15/x
  3. Step 3: Cross multiply
    3,902.09x = 5,384.90 × 2,330.15
  4. Step 4: Simplify right side
    3,902.09x = 12,547,624.74
  5. Step 5: Solve for x
    x = 12,547,624.74/3,902.09
  6. Step 6: Final answer
    x = 3,215.62

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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.