Home / 6,656.40-9,185.04-3,861.36

Finding the Fourth Proportional to 6,656.40, 9,185.04 and 3,861.36

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Solution

The fourth proportional to 6,656.40, 9,185.04 and 3,861.36 is: 5,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.40 : 9,185.04 = 3,861.36 : x
  2. Step 2: Convert to fraction form
    6,656.40/9,185.04 = 3,861.36/x
  3. Step 3: Cross multiply
    6,656.40x = 9,185.04 × 3,861.36
  4. Step 4: Simplify right side
    6,656.40x = 35,466,746.05
  5. Step 5: Solve for x
    x = 35,466,746.05/6,656.40
  6. Step 6: Final answer
    x = 5,328.22

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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.