Home / 5,161.16-7,742.61-2,386.70

Finding the Fourth Proportional to 5,161.16, 7,742.61 and 2,386.70

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Solution

The fourth proportional to 5,161.16, 7,742.61 and 2,386.70 is: 3,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.16 : 7,742.61 = 2,386.70 : x
  2. Step 2: Convert to fraction form
    5,161.16/7,742.61 = 2,386.70/x
  3. Step 3: Cross multiply
    5,161.16x = 7,742.61 × 2,386.70
  4. Step 4: Simplify right side
    5,161.16x = 18,479,287.29
  5. Step 5: Solve for x
    x = 18,479,287.29/5,161.16
  6. Step 6: Final answer
    x = 3,580.45

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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.