Home / 4,985.75-6,880.97-2,997.40

Finding the Fourth Proportional to 4,985.75, 6,880.97 and 2,997.40

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Solution

The fourth proportional to 4,985.75, 6,880.97 and 2,997.40 is: 4,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.75 : 6,880.97 = 2,997.40 : x
  2. Step 2: Convert to fraction form
    4,985.75/6,880.97 = 2,997.40/x
  3. Step 3: Cross multiply
    4,985.75x = 6,880.97 × 2,997.40
  4. Step 4: Simplify right side
    4,985.75x = 20,625,009.77
  5. Step 5: Solve for x
    x = 20,625,009.77/4,985.75
  6. Step 6: Final answer
    x = 4,136.80

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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.