Home / 3,412.16-4,709.52-2,015.12

Finding the Fourth Proportional to 3,412.16, 4,709.52 and 2,015.12

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Solution

The fourth proportional to 3,412.16, 4,709.52 and 2,015.12 is: 2,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.16 : 4,709.52 = 2,015.12 : x
  2. Step 2: Convert to fraction form
    3,412.16/4,709.52 = 2,015.12/x
  3. Step 3: Cross multiply
    3,412.16x = 4,709.52 × 2,015.12
  4. Step 4: Simplify right side
    3,412.16x = 9,490,247.94
  5. Step 5: Solve for x
    x = 9,490,247.94/3,412.16
  6. Step 6: Final answer
    x = 2,781.30

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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.