Home / 2,980.19-4,469.60-1,337.20

Finding the Fourth Proportional to 2,980.19, 4,469.60 and 1,337.20

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Solution

The fourth proportional to 2,980.19, 4,469.60 and 1,337.20 is: 2,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.19 : 4,469.60 = 1,337.20 : x
  2. Step 2: Convert to fraction form
    2,980.19/4,469.60 = 1,337.20/x
  3. Step 3: Cross multiply
    2,980.19x = 4,469.60 × 1,337.20
  4. Step 4: Simplify right side
    2,980.19x = 5,976,758.91
  5. Step 5: Solve for x
    x = 5,976,758.91/2,980.19
  6. Step 6: Final answer
    x = 2,005.50

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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.