Home / 6,859.28-10,288.14-1,929.12

Finding the Fourth Proportional to 6,859.28, 10,288.14 and 1,929.12

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Solution

The fourth proportional to 6,859.28, 10,288.14 and 1,929.12 is: 2,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.28 : 10,288.14 = 1,929.12 : x
  2. Step 2: Convert to fraction form
    6,859.28/10,288.14 = 1,929.12/x
  3. Step 3: Cross multiply
    6,859.28x = 10,288.14 × 1,929.12
  4. Step 4: Simplify right side
    6,859.28x = 19,847,056.64
  5. Step 5: Solve for x
    x = 19,847,056.64/6,859.28
  6. Step 6: Final answer
    x = 2,893.46

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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.