Home / 2,612.86-3,937.26-2,160.80

Finding the Fourth Proportional to 2,612.86, 3,937.26 and 2,160.80

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Solution

The fourth proportional to 2,612.86, 3,937.26 and 2,160.80 is: 3,256.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.86 : 3,937.26 = 2,160.80 : x
  2. Step 2: Convert to fraction form
    2,612.86/3,937.26 = 2,160.80/x
  3. Step 3: Cross multiply
    2,612.86x = 3,937.26 × 2,160.80
  4. Step 4: Simplify right side
    2,612.86x = 8,507,647.18
  5. Step 5: Solve for x
    x = 8,507,647.18/2,612.86
  6. Step 6: Final answer
    x = 3,256.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.