Home / 6,905.91-10,358.81-1,711.78

Finding the Fourth Proportional to 6,905.91, 10,358.81 and 1,711.78

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Solution

The fourth proportional to 6,905.91, 10,358.81 and 1,711.78 is: 2,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.91 : 10,358.81 = 1,711.78 : x
  2. Step 2: Convert to fraction form
    6,905.91/10,358.81 = 1,711.78/x
  3. Step 3: Cross multiply
    6,905.91x = 10,358.81 × 1,711.78
  4. Step 4: Simplify right side
    6,905.91x = 17,732,003.78
  5. Step 5: Solve for x
    x = 17,732,003.78/6,905.91
  6. Step 6: Final answer
    x = 2,567.66

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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.