Home / 4,192.71-6,289.74-1,419.55

Finding the Fourth Proportional to 4,192.71, 6,289.74 and 1,419.55

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Solution

The fourth proportional to 4,192.71, 6,289.74 and 1,419.55 is: 2,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.71 : 6,289.74 = 1,419.55 : x
  2. Step 2: Convert to fraction form
    4,192.71/6,289.74 = 1,419.55/x
  3. Step 3: Cross multiply
    4,192.71x = 6,289.74 × 1,419.55
  4. Step 4: Simplify right side
    4,192.71x = 8,928,600.42
  5. Step 5: Solve for x
    x = 8,928,600.42/4,192.71
  6. Step 6: Final answer
    x = 2,129.55

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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.