Home / 4,378.83-6,564.84-2,988.75

Finding the Fourth Proportional to 4,378.83, 6,564.84 and 2,988.75

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Solution

The fourth proportional to 4,378.83, 6,564.84 and 2,988.75 is: 4,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.83 : 6,564.84 = 2,988.75 : x
  2. Step 2: Convert to fraction form
    4,378.83/6,564.84 = 2,988.75/x
  3. Step 3: Cross multiply
    4,378.83x = 6,564.84 × 2,988.75
  4. Step 4: Simplify right side
    4,378.83x = 19,620,665.55
  5. Step 5: Solve for x
    x = 19,620,665.55/4,378.83
  6. Step 6: Final answer
    x = 4,480.80

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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.