Home / 2,979.95-4,111.94-1,653.47

Finding the Fourth Proportional to 2,979.95, 4,111.94 and 1,653.47

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Solution

The fourth proportional to 2,979.95, 4,111.94 and 1,653.47 is: 2,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.95 : 4,111.94 = 1,653.47 : x
  2. Step 2: Convert to fraction form
    2,979.95/4,111.94 = 1,653.47/x
  3. Step 3: Cross multiply
    2,979.95x = 4,111.94 × 1,653.47
  4. Step 4: Simplify right side
    2,979.95x = 6,798,940.60
  5. Step 5: Solve for x
    x = 6,798,940.60/2,979.95
  6. Step 6: Final answer
    x = 2,281.57

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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.