Home / 3,200.13-4,415.18-2,152.80

Finding the Fourth Proportional to 3,200.13, 4,415.18 and 2,152.80

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Solution

The fourth proportional to 3,200.13, 4,415.18 and 2,152.80 is: 2,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.13 : 4,415.18 = 2,152.80 : x
  2. Step 2: Convert to fraction form
    3,200.13/4,415.18 = 2,152.80/x
  3. Step 3: Cross multiply
    3,200.13x = 4,415.18 × 2,152.80
  4. Step 4: Simplify right side
    3,200.13x = 9,504,988.74
  5. Step 5: Solve for x
    x = 9,504,988.74/3,200.13
  6. Step 6: Final answer
    x = 2,970.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.