Home / 6,990.30-10,487.28-2,311.02

Finding the Fourth Proportional to 6,990.30, 10,487.28 and 2,311.02

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Solution

The fourth proportional to 6,990.30, 10,487.28 and 2,311.02 is: 3,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.30 : 10,487.28 = 2,311.02 : x
  2. Step 2: Convert to fraction form
    6,990.30/10,487.28 = 2,311.02/x
  3. Step 3: Cross multiply
    6,990.30x = 10,487.28 × 2,311.02
  4. Step 4: Simplify right side
    6,990.30x = 24,236,313.83
  5. Step 5: Solve for x
    x = 24,236,313.83/6,990.30
  6. Step 6: Final answer
    x = 3,467.14

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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.