Home / 6,689.86-10,030.68-3,180.94

Finding the Fourth Proportional to 6,689.86, 10,030.68 and 3,180.94

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Solution

The fourth proportional to 6,689.86, 10,030.68 and 3,180.94 is: 4,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.86 : 10,030.68 = 3,180.94 : x
  2. Step 2: Convert to fraction form
    6,689.86/10,030.68 = 3,180.94/x
  3. Step 3: Cross multiply
    6,689.86x = 10,030.68 × 3,180.94
  4. Step 4: Simplify right side
    6,689.86x = 31,906,991.24
  5. Step 5: Solve for x
    x = 31,906,991.24/6,689.86
  6. Step 6: Final answer
    x = 4,769.46

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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.