Home / 5,224.16-7,830.84-3,921.68

Finding the Fourth Proportional to 5,224.16, 7,830.84 and 3,921.68

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Solution

The fourth proportional to 5,224.16, 7,830.84 and 3,921.68 is: 5,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224.16 : 7,830.84 = 3,921.68 : x
  2. Step 2: Convert to fraction form
    5,224.16/7,830.84 = 3,921.68/x
  3. Step 3: Cross multiply
    5,224.16x = 7,830.84 × 3,921.68
  4. Step 4: Simplify right side
    5,224.16x = 30,710,048.61
  5. Step 5: Solve for x
    x = 30,710,048.61/5,224.16
  6. Step 6: Final answer
    x = 5,878.47

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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.