Home / 4,685.28-7,028.43-1,399.35

Finding the Fourth Proportional to 4,685.28, 7,028.43 and 1,399.35

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Solution

The fourth proportional to 4,685.28, 7,028.43 and 1,399.35 is: 2,099.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.28 : 7,028.43 = 1,399.35 : x
  2. Step 2: Convert to fraction form
    4,685.28/7,028.43 = 1,399.35/x
  3. Step 3: Cross multiply
    4,685.28x = 7,028.43 × 1,399.35
  4. Step 4: Simplify right side
    4,685.28x = 9,835,233.52
  5. Step 5: Solve for x
    x = 9,835,233.52/4,685.28
  6. Step 6: Final answer
    x = 2,099.18

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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.