Home / 2,741.20-4,111.80-2,085.10

Finding the Fourth Proportional to 2,741.20, 4,111.80 and 2,085.10

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Solution

The fourth proportional to 2,741.20, 4,111.80 and 2,085.10 is: 3,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.20 : 4,111.80 = 2,085.10 : x
  2. Step 2: Convert to fraction form
    2,741.20/4,111.80 = 2,085.10/x
  3. Step 3: Cross multiply
    2,741.20x = 4,111.80 × 2,085.10
  4. Step 4: Simplify right side
    2,741.20x = 8,573,514.18
  5. Step 5: Solve for x
    x = 8,573,514.18/2,741.20
  6. Step 6: Final answer
    x = 3,127.65

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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.