Home / 2,860.10-4,290.15-2,422.70

Finding the Fourth Proportional to 2,860.10, 4,290.15 and 2,422.70

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Solution

The fourth proportional to 2,860.10, 4,290.15 and 2,422.70 is: 3,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.10 : 4,290.15 = 2,422.70 : x
  2. Step 2: Convert to fraction form
    2,860.10/4,290.15 = 2,422.70/x
  3. Step 3: Cross multiply
    2,860.10x = 4,290.15 × 2,422.70
  4. Step 4: Simplify right side
    2,860.10x = 10,393,746.41
  5. Step 5: Solve for x
    x = 10,393,746.41/2,860.10
  6. Step 6: Final answer
    x = 3,634.05

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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.