Home / 3,477.60-5,211.78-1,284.30

Finding the Fourth Proportional to 3,477.60, 5,211.78 and 1,284.30

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Solution

The fourth proportional to 3,477.60, 5,211.78 and 1,284.30 is: 1,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.60 : 5,211.78 = 1,284.30 : x
  2. Step 2: Convert to fraction form
    3,477.60/5,211.78 = 1,284.30/x
  3. Step 3: Cross multiply
    3,477.60x = 5,211.78 × 1,284.30
  4. Step 4: Simplify right side
    3,477.60x = 6,693,489.05
  5. Step 5: Solve for x
    x = 6,693,489.05/3,477.60
  6. Step 6: Final answer
    x = 1,924.74

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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.