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Finding the Fourth Proportional to 2,842.92, 4,264.92 and 1,111.50

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Solution

The fourth proportional to 2,842.92, 4,264.92 and 1,111.50 is: 1,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.92 : 4,264.92 = 1,111.50 : x
  2. Step 2: Convert to fraction form
    2,842.92/4,264.92 = 1,111.50/x
  3. Step 3: Cross multiply
    2,842.92x = 4,264.92 × 1,111.50
  4. Step 4: Simplify right side
    2,842.92x = 4,740,458.58
  5. Step 5: Solve for x
    x = 4,740,458.58/2,842.92
  6. Step 6: Final answer
    x = 1,667.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.