Home / 3,030.92-4,180.79-2,085.08

Finding the Fourth Proportional to 3,030.92, 4,180.79 and 2,085.08

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Solution

The fourth proportional to 3,030.92, 4,180.79 and 2,085.08 is: 2,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.92 : 4,180.79 = 2,085.08 : x
  2. Step 2: Convert to fraction form
    3,030.92/4,180.79 = 2,085.08/x
  3. Step 3: Cross multiply
    3,030.92x = 4,180.79 × 2,085.08
  4. Step 4: Simplify right side
    3,030.92x = 8,717,250.28
  5. Step 5: Solve for x
    x = 8,717,250.28/3,030.92
  6. Step 6: Final answer
    x = 2,876.11

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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.