Home / 6,606.79-9,117.40-3,622.90

Finding the Fourth Proportional to 6,606.79, 9,117.40 and 3,622.90

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Solution

The fourth proportional to 6,606.79, 9,117.40 and 3,622.90 is: 4,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.79 : 9,117.40 = 3,622.90 : x
  2. Step 2: Convert to fraction form
    6,606.79/9,117.40 = 3,622.90/x
  3. Step 3: Cross multiply
    6,606.79x = 9,117.40 × 3,622.90
  4. Step 4: Simplify right side
    6,606.79x = 33,031,441.05
  5. Step 5: Solve for x
    x = 33,031,441.05/6,606.79
  6. Step 6: Final answer
    x = 4,999.62

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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.