Home / 2,998.85-4,475.36-2,670.80

Finding the Fourth Proportional to 2,998.85, 4,475.36 and 2,670.80

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Solution

The fourth proportional to 2,998.85, 4,475.36 and 2,670.80 is: 3,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.85 : 4,475.36 = 2,670.80 : x
  2. Step 2: Convert to fraction form
    2,998.85/4,475.36 = 2,670.80/x
  3. Step 3: Cross multiply
    2,998.85x = 4,475.36 × 2,670.80
  4. Step 4: Simplify right side
    2,998.85x = 11,952,775.79
  5. Step 5: Solve for x
    x = 11,952,775.79/2,998.85
  6. Step 6: Final answer
    x = 3,985.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.