Home / 5,812.47-8,021.28-3,159.93

Finding the Fourth Proportional to 5,812.47, 8,021.28 and 3,159.93

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Solution

The fourth proportional to 5,812.47, 8,021.28 and 3,159.93 is: 4,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.47 : 8,021.28 = 3,159.93 : x
  2. Step 2: Convert to fraction form
    5,812.47/8,021.28 = 3,159.93/x
  3. Step 3: Cross multiply
    5,812.47x = 8,021.28 × 3,159.93
  4. Step 4: Simplify right side
    5,812.47x = 25,346,691.21
  5. Step 5: Solve for x
    x = 25,346,691.21/5,812.47
  6. Step 6: Final answer
    x = 4,360.75

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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.