Home / 3,319.20-4,976.64-1,588.80

Finding the Fourth Proportional to 3,319.20, 4,976.64 and 1,588.80

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Solution

The fourth proportional to 3,319.20, 4,976.64 and 1,588.80 is: 2,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.20 : 4,976.64 = 1,588.80 : x
  2. Step 2: Convert to fraction form
    3,319.20/4,976.64 = 1,588.80/x
  3. Step 3: Cross multiply
    3,319.20x = 4,976.64 × 1,588.80
  4. Step 4: Simplify right side
    3,319.20x = 7,906,885.63
  5. Step 5: Solve for x
    x = 7,906,885.63/3,319.20
  6. Step 6: Final answer
    x = 2,382.17

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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.