Home / 2,135.20-3,207.60-2,053.60

Finding the Fourth Proportional to 2,135.20, 3,207.60 and 2,053.60

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Solution

The fourth proportional to 2,135.20, 3,207.60 and 2,053.60 is: 3,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.20 : 3,207.60 = 2,053.60 : x
  2. Step 2: Convert to fraction form
    2,135.20/3,207.60 = 2,053.60/x
  3. Step 3: Cross multiply
    2,135.20x = 3,207.60 × 2,053.60
  4. Step 4: Simplify right side
    2,135.20x = 6,587,127.36
  5. Step 5: Solve for x
    x = 6,587,127.36/2,135.20
  6. Step 6: Final answer
    x = 3,085.02

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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.