Home / 6,943.79-10,415.45-2,782.68

Finding the Fourth Proportional to 6,943.79, 10,415.45 and 2,782.68

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Solution

The fourth proportional to 6,943.79, 10,415.45 and 2,782.68 is: 4,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.79 : 10,415.45 = 2,782.68 : x
  2. Step 2: Convert to fraction form
    6,943.79/10,415.45 = 2,782.68/x
  3. Step 3: Cross multiply
    6,943.79x = 10,415.45 × 2,782.68
  4. Step 4: Simplify right side
    6,943.79x = 28,982,849.86
  5. Step 5: Solve for x
    x = 28,982,849.86/6,943.79
  6. Step 6: Final answer
    x = 4,173.92

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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.