Home / 2,979.36-4,111.46-1,653.06

Finding the Fourth Proportional to 2,979.36, 4,111.46 and 1,653.06

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Solution

The fourth proportional to 2,979.36, 4,111.46 and 1,653.06 is: 2,281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.36 : 4,111.46 = 1,653.06 : x
  2. Step 2: Convert to fraction form
    2,979.36/4,111.46 = 1,653.06/x
  3. Step 3: Cross multiply
    2,979.36x = 4,111.46 × 1,653.06
  4. Step 4: Simplify right side
    2,979.36x = 6,796,490.07
  5. Step 5: Solve for x
    x = 6,796,490.07/2,979.36
  6. Step 6: Final answer
    x = 2,281.19

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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.