Home / 5,410.60-8,111.28-2,122.93

Finding the Fourth Proportional to 5,410.60, 8,111.28 and 2,122.93

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Solution

The fourth proportional to 5,410.60, 8,111.28 and 2,122.93 is: 3,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.60 : 8,111.28 = 2,122.93 : x
  2. Step 2: Convert to fraction form
    5,410.60/8,111.28 = 2,122.93/x
  3. Step 3: Cross multiply
    5,410.60x = 8,111.28 × 2,122.93
  4. Step 4: Simplify right side
    5,410.60x = 17,219,679.65
  5. Step 5: Solve for x
    x = 17,219,679.65/5,410.60
  6. Step 6: Final answer
    x = 3,182.58

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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.