Home / 4,985.45-6,880.66-2,997.11

Finding the Fourth Proportional to 4,985.45, 6,880.66 and 2,997.11

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Solution

The fourth proportional to 4,985.45, 6,880.66 and 2,997.11 is: 4,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.45 : 6,880.66 = 2,997.11 : x
  2. Step 2: Convert to fraction form
    4,985.45/6,880.66 = 2,997.11/x
  3. Step 3: Cross multiply
    4,985.45x = 6,880.66 × 2,997.11
  4. Step 4: Simplify right side
    4,985.45x = 20,622,053.00
  5. Step 5: Solve for x
    x = 20,622,053.00/4,985.45
  6. Step 6: Final answer
    x = 4,136.45

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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.