Home / 5,575.80-8,364.78-2,800.20

Finding the Fourth Proportional to 5,575.80, 8,364.78 and 2,800.20

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Solution

The fourth proportional to 5,575.80, 8,364.78 and 2,800.20 is: 4,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.80 : 8,364.78 = 2,800.20 : x
  2. Step 2: Convert to fraction form
    5,575.80/8,364.78 = 2,800.20/x
  3. Step 3: Cross multiply
    5,575.80x = 8,364.78 × 2,800.20
  4. Step 4: Simplify right side
    5,575.80x = 23,423,056.96
  5. Step 5: Solve for x
    x = 23,423,056.96/5,575.80
  6. Step 6: Final answer
    x = 4,200.84

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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.