Home / 5,164.16-7,126.56-2,806.31

Finding the Fourth Proportional to 5,164.16, 7,126.56 and 2,806.31

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Solution

The fourth proportional to 5,164.16, 7,126.56 and 2,806.31 is: 3,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.16 : 7,126.56 = 2,806.31 : x
  2. Step 2: Convert to fraction form
    5,164.16/7,126.56 = 2,806.31/x
  3. Step 3: Cross multiply
    5,164.16x = 7,126.56 × 2,806.31
  4. Step 4: Simplify right side
    5,164.16x = 19,999,322.56
  5. Step 5: Solve for x
    x = 19,999,322.56/5,164.16
  6. Step 6: Final answer
    x = 3,872.72

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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.