Home / 6,484.80-9,727.20-4,821.60

Finding the Fourth Proportional to 6,484.80, 9,727.20 and 4,821.60

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Solution

The fourth proportional to 6,484.80, 9,727.20 and 4,821.60 is: 7,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,484.80 : 9,727.20 = 4,821.60 : x
  2. Step 2: Convert to fraction form
    6,484.80/9,727.20 = 4,821.60/x
  3. Step 3: Cross multiply
    6,484.80x = 9,727.20 × 4,821.60
  4. Step 4: Simplify right side
    6,484.80x = 46,900,667.52
  5. Step 5: Solve for x
    x = 46,900,667.52/6,484.80
  6. Step 6: Final answer
    x = 7,232.40

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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.