Home / 6,289.93-8,680.15-3,933.45

Finding the Fourth Proportional to 6,289.93, 8,680.15 and 3,933.45

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Solution

The fourth proportional to 6,289.93, 8,680.15 and 3,933.45 is: 5,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.93 : 8,680.15 = 3,933.45 : x
  2. Step 2: Convert to fraction form
    6,289.93/8,680.15 = 3,933.45/x
  3. Step 3: Cross multiply
    6,289.93x = 8,680.15 × 3,933.45
  4. Step 4: Simplify right side
    6,289.93x = 34,142,936.02
  5. Step 5: Solve for x
    x = 34,142,936.02/6,289.93
  6. Step 6: Final answer
    x = 5,428.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.