Home / 2,740.96-4,085.40-2,585.28

Finding the Fourth Proportional to 2,740.96, 4,085.40 and 2,585.28

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Solution

The fourth proportional to 2,740.96, 4,085.40 and 2,585.28 is: 3,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.96 : 4,085.40 = 2,585.28 : x
  2. Step 2: Convert to fraction form
    2,740.96/4,085.40 = 2,585.28/x
  3. Step 3: Cross multiply
    2,740.96x = 4,085.40 × 2,585.28
  4. Step 4: Simplify right side
    2,740.96x = 10,561,902.91
  5. Step 5: Solve for x
    x = 10,561,902.91/2,740.96
  6. Step 6: Final answer
    x = 3,853.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.