Home / 6,280.76-9,415.38-2,816.12

Finding the Fourth Proportional to 6,280.76, 9,415.38 and 2,816.12

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Solution

The fourth proportional to 6,280.76, 9,415.38 and 2,816.12 is: 4,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.76 : 9,415.38 = 2,816.12 : x
  2. Step 2: Convert to fraction form
    6,280.76/9,415.38 = 2,816.12/x
  3. Step 3: Cross multiply
    6,280.76x = 9,415.38 × 2,816.12
  4. Step 4: Simplify right side
    6,280.76x = 26,514,839.93
  5. Step 5: Solve for x
    x = 26,514,839.93/6,280.76
  6. Step 6: Final answer
    x = 4,221.60

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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.