Home / 6,990.08-9,646.48-3,803.55

Finding the Fourth Proportional to 6,990.08, 9,646.48 and 3,803.55

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Solution

The fourth proportional to 6,990.08, 9,646.48 and 3,803.55 is: 5,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.08 : 9,646.48 = 3,803.55 : x
  2. Step 2: Convert to fraction form
    6,990.08/9,646.48 = 3,803.55/x
  3. Step 3: Cross multiply
    6,990.08x = 9,646.48 × 3,803.55
  4. Step 4: Simplify right side
    6,990.08x = 36,690,869.00
  5. Step 5: Solve for x
    x = 36,690,869.00/6,990.08
  6. Step 6: Final answer
    x = 5,248.99

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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.