Home / 6,643.12-9,969.80-2,486.20

Finding the Fourth Proportional to 6,643.12, 9,969.80 and 2,486.20

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Solution

The fourth proportional to 6,643.12, 9,969.80 and 2,486.20 is: 3,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.12 : 9,969.80 = 2,486.20 : x
  2. Step 2: Convert to fraction form
    6,643.12/9,969.80 = 2,486.20/x
  3. Step 3: Cross multiply
    6,643.12x = 9,969.80 × 2,486.20
  4. Step 4: Simplify right side
    6,643.12x = 24,786,916.76
  5. Step 5: Solve for x
    x = 24,786,916.76/6,643.12
  6. Step 6: Final answer
    x = 3,731.22

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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.