Home / 7,089.80-9,778.02-4,432.36

Finding the Fourth Proportional to 7,089.80, 9,778.02 and 4,432.36

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Solution

The fourth proportional to 7,089.80, 9,778.02 and 4,432.36 is: 6,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.80 : 9,778.02 = 4,432.36 : x
  2. Step 2: Convert to fraction form
    7,089.80/9,778.02 = 4,432.36/x
  3. Step 3: Cross multiply
    7,089.80x = 9,778.02 × 4,432.36
  4. Step 4: Simplify right side
    7,089.80x = 43,339,704.73
  5. Step 5: Solve for x
    x = 43,339,704.73/7,089.80
  6. Step 6: Final answer
    x = 6,112.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.