Home / 2,980.60-4,472.16-1,499.05

Finding the Fourth Proportional to 2,980.60, 4,472.16 and 1,499.05

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Solution

The fourth proportional to 2,980.60, 4,472.16 and 1,499.05 is: 2,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.60 : 4,472.16 = 1,499.05 : x
  2. Step 2: Convert to fraction form
    2,980.60/4,472.16 = 1,499.05/x
  3. Step 3: Cross multiply
    2,980.60x = 4,472.16 × 1,499.05
  4. Step 4: Simplify right side
    2,980.60x = 6,703,991.45
  5. Step 5: Solve for x
    x = 6,703,991.45/2,980.60
  6. Step 6: Final answer
    x = 2,249.21

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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.