Home / 2,948.80-4,066.92-2,152.12

Finding the Fourth Proportional to 2,948.80, 4,066.92 and 2,152.12

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Solution

The fourth proportional to 2,948.80, 4,066.92 and 2,152.12 is: 2,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.80 : 4,066.92 = 2,152.12 : x
  2. Step 2: Convert to fraction form
    2,948.80/4,066.92 = 2,152.12/x
  3. Step 3: Cross multiply
    2,948.80x = 4,066.92 × 2,152.12
  4. Step 4: Simplify right side
    2,948.80x = 8,752,499.87
  5. Step 5: Solve for x
    x = 8,752,499.87/2,948.80
  6. Step 6: Final answer
    x = 2,968.16

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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.