Home / 2,955.74-4,080.40-2,291.10

Finding the Fourth Proportional to 2,955.74, 4,080.40 and 2,291.10

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Solution

The fourth proportional to 2,955.74, 4,080.40 and 2,291.10 is: 3,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.74 : 4,080.40 = 2,291.10 : x
  2. Step 2: Convert to fraction form
    2,955.74/4,080.40 = 2,291.10/x
  3. Step 3: Cross multiply
    2,955.74x = 4,080.40 × 2,291.10
  4. Step 4: Simplify right side
    2,955.74x = 9,348,604.44
  5. Step 5: Solve for x
    x = 9,348,604.44/2,955.74
  6. Step 6: Final answer
    x = 3,162.86

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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.