Home / 6,990.18-9,646.66-3,803.70

Finding the Fourth Proportional to 6,990.18, 9,646.66 and 3,803.70

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Solution

The fourth proportional to 6,990.18, 9,646.66 and 3,803.70 is: 5,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.18 : 9,646.66 = 3,803.70 : x
  2. Step 2: Convert to fraction form
    6,990.18/9,646.66 = 3,803.70/x
  3. Step 3: Cross multiply
    6,990.18x = 9,646.66 × 3,803.70
  4. Step 4: Simplify right side
    6,990.18x = 36,693,000.64
  5. Step 5: Solve for x
    x = 36,693,000.64/6,990.18
  6. Step 6: Final answer
    x = 5,249.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.