Home / 6,515.78-9,774.88-2,133.48

Finding the Fourth Proportional to 6,515.78, 9,774.88 and 2,133.48

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Solution

The fourth proportional to 6,515.78, 9,774.88 and 2,133.48 is: 3,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.78 : 9,774.88 = 2,133.48 : x
  2. Step 2: Convert to fraction form
    6,515.78/9,774.88 = 2,133.48/x
  3. Step 3: Cross multiply
    6,515.78x = 9,774.88 × 2,133.48
  4. Step 4: Simplify right side
    6,515.78x = 20,854,510.98
  5. Step 5: Solve for x
    x = 20,854,510.98/6,515.78
  6. Step 6: Final answer
    x = 3,200.62

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1.5x scale

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.