Home / 6,882.40-10,323.61-1,688.28

Finding the Fourth Proportional to 6,882.40, 10,323.61 and 1,688.28

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Solution

The fourth proportional to 6,882.40, 10,323.61 and 1,688.28 is: 2,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,882.40 : 10,323.61 = 1,688.28 : x
  2. Step 2: Convert to fraction form
    6,882.40/10,323.61 = 1,688.28/x
  3. Step 3: Cross multiply
    6,882.40x = 10,323.61 × 1,688.28
  4. Step 4: Simplify right side
    6,882.40x = 17,429,120.59
  5. Step 5: Solve for x
    x = 17,429,120.59/6,882.40
  6. Step 6: Final answer
    x = 2,532.42

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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.