Home / 6,990.72-10,485.60-2,606.16

Finding the Fourth Proportional to 6,990.72, 10,485.60 and 2,606.16

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Solution

The fourth proportional to 6,990.72, 10,485.60 and 2,606.16 is: 3,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.72 : 10,485.60 = 2,606.16 : x
  2. Step 2: Convert to fraction form
    6,990.72/10,485.60 = 2,606.16/x
  3. Step 3: Cross multiply
    6,990.72x = 10,485.60 × 2,606.16
  4. Step 4: Simplify right side
    6,990.72x = 27,327,151.30
  5. Step 5: Solve for x
    x = 27,327,151.30/6,990.72
  6. Step 6: Final answer
    x = 3,909.06

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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.