Home / 5,518.84-8,267.84-4,280.18

Finding the Fourth Proportional to 5,518.84, 8,267.84 and 4,280.18

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Solution

The fourth proportional to 5,518.84, 8,267.84 and 4,280.18 is: 6,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.84 : 8,267.84 = 4,280.18 : x
  2. Step 2: Convert to fraction form
    5,518.84/8,267.84 = 4,280.18/x
  3. Step 3: Cross multiply
    5,518.84x = 8,267.84 × 4,280.18
  4. Step 4: Simplify right side
    5,518.84x = 35,387,843.41
  5. Step 5: Solve for x
    x = 35,387,843.41/5,518.84
  6. Step 6: Final answer
    x = 6,412.19

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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.