Home / 5,417.31-8,126.01-1,719.56

Finding the Fourth Proportional to 5,417.31, 8,126.01 and 1,719.56

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Solution

The fourth proportional to 5,417.31, 8,126.01 and 1,719.56 is: 2,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.31 : 8,126.01 = 1,719.56 : x
  2. Step 2: Convert to fraction form
    5,417.31/8,126.01 = 1,719.56/x
  3. Step 3: Cross multiply
    5,417.31x = 8,126.01 × 1,719.56
  4. Step 4: Simplify right side
    5,417.31x = 13,973,121.13
  5. Step 5: Solve for x
    x = 13,973,121.13/5,417.31
  6. Step 6: Final answer
    x = 2,579.35

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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.