Home / 4,478.90-6,708.44-2,807.57

Finding the Fourth Proportional to 4,478.90, 6,708.44 and 2,807.57

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Solution

The fourth proportional to 4,478.90, 6,708.44 and 2,807.57 is: 4,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.90 : 6,708.44 = 2,807.57 : x
  2. Step 2: Convert to fraction form
    4,478.90/6,708.44 = 2,807.57/x
  3. Step 3: Cross multiply
    4,478.90x = 6,708.44 × 2,807.57
  4. Step 4: Simplify right side
    4,478.90x = 18,834,438.68
  5. Step 5: Solve for x
    x = 18,834,438.68/4,478.90
  6. Step 6: Final answer
    x = 4,205.15

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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.