Home / 2,900.08-4,344.36-2,489.20

Finding the Fourth Proportional to 2,900.08, 4,344.36 and 2,489.20

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Solution

The fourth proportional to 2,900.08, 4,344.36 and 2,489.20 is: 3,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.08 : 4,344.36 = 2,489.20 : x
  2. Step 2: Convert to fraction form
    2,900.08/4,344.36 = 2,489.20/x
  3. Step 3: Cross multiply
    2,900.08x = 4,344.36 × 2,489.20
  4. Step 4: Simplify right side
    2,900.08x = 10,813,980.91
  5. Step 5: Solve for x
    x = 10,813,980.91/2,900.08
  6. Step 6: Final answer
    x = 3,728.86

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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.