Home / 5,341.81-8,010.08-3,121.20

Finding the Fourth Proportional to 5,341.81, 8,010.08 and 3,121.20

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Solution

The fourth proportional to 5,341.81, 8,010.08 and 3,121.20 is: 4,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,341.81 : 8,010.08 = 3,121.20 : x
  2. Step 2: Convert to fraction form
    5,341.81/8,010.08 = 3,121.20/x
  3. Step 3: Cross multiply
    5,341.81x = 8,010.08 × 3,121.20
  4. Step 4: Simplify right side
    5,341.81x = 25,001,061.70
  5. Step 5: Solve for x
    x = 25,001,061.70/5,341.81
  6. Step 6: Final answer
    x = 4,680.26

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1.5x scale

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.