Home / 2,078.10-3,117.15-2,065.95

Finding the Fourth Proportional to 2,078.10, 3,117.15 and 2,065.95

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Solution

The fourth proportional to 2,078.10, 3,117.15 and 2,065.95 is: 3,098.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.10 : 3,117.15 = 2,065.95 : x
  2. Step 2: Convert to fraction form
    2,078.10/3,117.15 = 2,065.95/x
  3. Step 3: Cross multiply
    2,078.10x = 3,117.15 × 2,065.95
  4. Step 4: Simplify right side
    2,078.10x = 6,439,876.04
  5. Step 5: Solve for x
    x = 6,439,876.04/2,078.10
  6. Step 6: Final answer
    x = 3,098.93

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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.