Home / 5,388.63-8,082.92-1,386.01

Finding the Fourth Proportional to 5,388.63, 8,082.92 and 1,386.01

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Solution

The fourth proportional to 5,388.63, 8,082.92 and 1,386.01 is: 2,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.63 : 8,082.92 = 1,386.01 : x
  2. Step 2: Convert to fraction form
    5,388.63/8,082.92 = 1,386.01/x
  3. Step 3: Cross multiply
    5,388.63x = 8,082.92 × 1,386.01
  4. Step 4: Simplify right side
    5,388.63x = 11,203,011.12
  5. Step 5: Solve for x
    x = 11,203,011.12/5,388.63
  6. Step 6: Final answer
    x = 2,079.01

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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.