Home / 5,812.48-8,020.90-3,159.87

Finding the Fourth Proportional to 5,812.48, 8,020.90 and 3,159.87

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Solution

The fourth proportional to 5,812.48, 8,020.90 and 3,159.87 is: 4,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.48 : 8,020.90 = 3,159.87 : x
  2. Step 2: Convert to fraction form
    5,812.48/8,020.90 = 3,159.87/x
  3. Step 3: Cross multiply
    5,812.48x = 8,020.90 × 3,159.87
  4. Step 4: Simplify right side
    5,812.48x = 25,345,001.28
  5. Step 5: Solve for x
    x = 25,345,001.28/5,812.48
  6. Step 6: Final answer
    x = 4,360.45

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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.