Home / 5,228.32-7,838.16-3,580.78

Finding the Fourth Proportional to 5,228.32, 7,838.16 and 3,580.78

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Solution

The fourth proportional to 5,228.32, 7,838.16 and 3,580.78 is: 5,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.32 : 7,838.16 = 3,580.78 : x
  2. Step 2: Convert to fraction form
    5,228.32/7,838.16 = 3,580.78/x
  3. Step 3: Cross multiply
    5,228.32x = 7,838.16 × 3,580.78
  4. Step 4: Simplify right side
    5,228.32x = 28,066,726.56
  5. Step 5: Solve for x
    x = 28,066,726.56/5,228.32
  6. Step 6: Final answer
    x = 5,368.21

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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.