Home / 2,979.25-4,111.61-1,653.08

Finding the Fourth Proportional to 2,979.25, 4,111.61 and 1,653.08

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Solution

The fourth proportional to 2,979.25, 4,111.61 and 1,653.08 is: 2,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.25 : 4,111.61 = 1,653.08 : x
  2. Step 2: Convert to fraction form
    2,979.25/4,111.61 = 1,653.08/x
  3. Step 3: Cross multiply
    2,979.25x = 4,111.61 × 1,653.08
  4. Step 4: Simplify right side
    2,979.25x = 6,796,800.73
  5. Step 5: Solve for x
    x = 6,796,800.73/2,979.25
  6. Step 6: Final answer
    x = 2,281.38

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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.