Home / 3,210.27-4,430.49-2,015.46

Finding the Fourth Proportional to 3,210.27, 4,430.49 and 2,015.46

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Solution

The fourth proportional to 3,210.27, 4,430.49 and 2,015.46 is: 2,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.27 : 4,430.49 = 2,015.46 : x
  2. Step 2: Convert to fraction form
    3,210.27/4,430.49 = 2,015.46/x
  3. Step 3: Cross multiply
    3,210.27x = 4,430.49 × 2,015.46
  4. Step 4: Simplify right side
    3,210.27x = 8,929,475.38
  5. Step 5: Solve for x
    x = 8,929,475.38/3,210.27
  6. Step 6: Final answer
    x = 2,781.53

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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.