Home / 2,875.48-3,968.11-1,696.12

Finding the Fourth Proportional to 2,875.48, 3,968.11 and 1,696.12

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Solution

The fourth proportional to 2,875.48, 3,968.11 and 1,696.12 is: 2,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.48 : 3,968.11 = 1,696.12 : x
  2. Step 2: Convert to fraction form
    2,875.48/3,968.11 = 1,696.12/x
  3. Step 3: Cross multiply
    2,875.48x = 3,968.11 × 1,696.12
  4. Step 4: Simplify right side
    2,875.48x = 6,730,390.73
  5. Step 5: Solve for x
    x = 6,730,390.73/2,875.48
  6. Step 6: Final answer
    x = 2,340.61

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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.