Home / 2,979.29-4,111.56-1,652.92

Finding the Fourth Proportional to 2,979.29, 4,111.56 and 1,652.92

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Solution

The fourth proportional to 2,979.29, 4,111.56 and 1,652.92 is: 2,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.29 : 4,111.56 = 1,652.92 : x
  2. Step 2: Convert to fraction form
    2,979.29/4,111.56 = 1,652.92/x
  3. Step 3: Cross multiply
    2,979.29x = 4,111.56 × 1,652.92
  4. Step 4: Simplify right side
    2,979.29x = 6,796,079.76
  5. Step 5: Solve for x
    x = 6,796,079.76/2,979.29
  6. Step 6: Final answer
    x = 2,281.11

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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.