Home / 6,526.78-9,792.18-1,909.78

Finding the Fourth Proportional to 6,526.78, 9,792.18 and 1,909.78

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Solution

The fourth proportional to 6,526.78, 9,792.18 and 1,909.78 is: 2,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,526.78 : 9,792.18 = 1,909.78 : x
  2. Step 2: Convert to fraction form
    6,526.78/9,792.18 = 1,909.78/x
  3. Step 3: Cross multiply
    6,526.78x = 9,792.18 × 1,909.78
  4. Step 4: Simplify right side
    6,526.78x = 18,700,909.52
  5. Step 5: Solve for x
    x = 18,700,909.52/6,526.78
  6. Step 6: Final answer
    x = 2,865.26

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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.