Home / 3,476.18-5,210.76-2,178.56

Finding the Fourth Proportional to 3,476.18, 5,210.76 and 2,178.56

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Solution

The fourth proportional to 3,476.18, 5,210.76 and 2,178.56 is: 3,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.18 : 5,210.76 = 2,178.56 : x
  2. Step 2: Convert to fraction form
    3,476.18/5,210.76 = 2,178.56/x
  3. Step 3: Cross multiply
    3,476.18x = 5,210.76 × 2,178.56
  4. Step 4: Simplify right side
    3,476.18x = 11,351,953.31
  5. Step 5: Solve for x
    x = 11,351,953.31/3,476.18
  6. Step 6: Final answer
    x = 3,265.64

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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.