Home / 5,812.32-8,020.95-3,159.72

Finding the Fourth Proportional to 5,812.32, 8,020.95 and 3,159.72

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Solution

The fourth proportional to 5,812.32, 8,020.95 and 3,159.72 is: 4,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.32 : 8,020.95 = 3,159.72 : x
  2. Step 2: Convert to fraction form
    5,812.32/8,020.95 = 3,159.72/x
  3. Step 3: Cross multiply
    5,812.32x = 8,020.95 × 3,159.72
  4. Step 4: Simplify right side
    5,812.32x = 25,343,956.13
  5. Step 5: Solve for x
    x = 25,343,956.13/5,812.32
  6. Step 6: Final answer
    x = 4,360.39

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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.