Home / 6,340.81-8,750.86-3,688.03

Finding the Fourth Proportional to 6,340.81, 8,750.86 and 3,688.03

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Solution

The fourth proportional to 6,340.81, 8,750.86 and 3,688.03 is: 5,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.81 : 8,750.86 = 3,688.03 : x
  2. Step 2: Convert to fraction form
    6,340.81/8,750.86 = 3,688.03/x
  3. Step 3: Cross multiply
    6,340.81x = 8,750.86 × 3,688.03
  4. Step 4: Simplify right side
    6,340.81x = 32,273,446.30
  5. Step 5: Solve for x
    x = 32,273,446.30/6,340.81
  6. Step 6: Final answer
    x = 5,089.80

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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.