Home / 5,407.53-8,111.34-1,709.78

Finding the Fourth Proportional to 5,407.53, 8,111.34 and 1,709.78

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Solution

The fourth proportional to 5,407.53, 8,111.34 and 1,709.78 is: 2,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.53 : 8,111.34 = 1,709.78 : x
  2. Step 2: Convert to fraction form
    5,407.53/8,111.34 = 1,709.78/x
  3. Step 3: Cross multiply
    5,407.53x = 8,111.34 × 1,709.78
  4. Step 4: Simplify right side
    5,407.53x = 13,868,566.35
  5. Step 5: Solve for x
    x = 13,868,566.35/5,407.53
  6. Step 6: Final answer
    x = 2,564.68

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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.