Home / 2,980.59-4,109.85-2,036.94

Finding the Fourth Proportional to 2,980.59, 4,109.85 and 2,036.94

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Solution

The fourth proportional to 2,980.59, 4,109.85 and 2,036.94 is: 2,808.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.59 : 4,109.85 = 2,036.94 : x
  2. Step 2: Convert to fraction form
    2,980.59/4,109.85 = 2,036.94/x
  3. Step 3: Cross multiply
    2,980.59x = 4,109.85 × 2,036.94
  4. Step 4: Simplify right side
    2,980.59x = 8,371,517.86
  5. Step 5: Solve for x
    x = 8,371,517.86/2,980.59
  6. Step 6: Final answer
    x = 2,808.68

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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.