Home / 6,864.81-9,473.34-3,880.55

Finding the Fourth Proportional to 6,864.81, 9,473.34 and 3,880.55

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Solution

The fourth proportional to 6,864.81, 9,473.34 and 3,880.55 is: 5,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.81 : 9,473.34 = 3,880.55 : x
  2. Step 2: Convert to fraction form
    6,864.81/9,473.34 = 3,880.55/x
  3. Step 3: Cross multiply
    6,864.81x = 9,473.34 × 3,880.55
  4. Step 4: Simplify right side
    6,864.81x = 36,761,769.54
  5. Step 5: Solve for x
    x = 36,761,769.54/6,864.81
  6. Step 6: Final answer
    x = 5,355.10

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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.