Home / 2,961.13-4,088.55-2,078.13

Finding the Fourth Proportional to 2,961.13, 4,088.55 and 2,078.13

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Solution

The fourth proportional to 2,961.13, 4,088.55 and 2,078.13 is: 2,869.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.13 : 4,088.55 = 2,078.13 : x
  2. Step 2: Convert to fraction form
    2,961.13/4,088.55 = 2,078.13/x
  3. Step 3: Cross multiply
    2,961.13x = 4,088.55 × 2,078.13
  4. Step 4: Simplify right side
    2,961.13x = 8,496,538.41
  5. Step 5: Solve for x
    x = 8,496,538.41/2,961.13
  6. Step 6: Final answer
    x = 2,869.36

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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.