Home / 2,979.07-4,111-1,652.74

Finding the Fourth Proportional to 2,979.07, 4,111 and 1,652.74

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Solution

The fourth proportional to 2,979.07, 4,111 and 1,652.74 is: 2,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.07 : 4,111 = 1,652.74 : x
  2. Step 2: Convert to fraction form
    2,979.07/4,111 = 1,652.74/x
  3. Step 3: Cross multiply
    2,979.07x = 4,111 × 1,652.74
  4. Step 4: Simplify right side
    2,979.07x = 6,794,414.14
  5. Step 5: Solve for x
    x = 6,794,414.14/2,979.07
  6. Step 6: Final answer
    x = 2,280.72

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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.