Home / 5,026.52-7,539.63-1,328.78

Finding the Fourth Proportional to 5,026.52, 7,539.63 and 1,328.78

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Solution

The fourth proportional to 5,026.52, 7,539.63 and 1,328.78 is: 1,993.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,026.52 : 7,539.63 = 1,328.78 : x
  2. Step 2: Convert to fraction form
    5,026.52/7,539.63 = 1,328.78/x
  3. Step 3: Cross multiply
    5,026.52x = 7,539.63 × 1,328.78
  4. Step 4: Simplify right side
    5,026.52x = 10,018,471.85
  5. Step 5: Solve for x
    x = 10,018,471.85/5,026.52
  6. Step 6: Final answer
    x = 1,993.12

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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.