Home / 3,124.05-4,682.81-1,478.64

Finding the Fourth Proportional to 3,124.05, 4,682.81 and 1,478.64

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Solution

The fourth proportional to 3,124.05, 4,682.81 and 1,478.64 is: 2,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.05 : 4,682.81 = 1,478.64 : x
  2. Step 2: Convert to fraction form
    3,124.05/4,682.81 = 1,478.64/x
  3. Step 3: Cross multiply
    3,124.05x = 4,682.81 × 1,478.64
  4. Step 4: Simplify right side
    3,124.05x = 6,924,190.18
  5. Step 5: Solve for x
    x = 6,924,190.18/3,124.05
  6. Step 6: Final answer
    x = 2,216.41

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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.