Home / 5,217.90-7,200.75-2,860.08

Finding the Fourth Proportional to 5,217.90, 7,200.75 and 2,860.08

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Solution

The fourth proportional to 5,217.90, 7,200.75 and 2,860.08 is: 3,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.90 : 7,200.75 = 2,860.08 : x
  2. Step 2: Convert to fraction form
    5,217.90/7,200.75 = 2,860.08/x
  3. Step 3: Cross multiply
    5,217.90x = 7,200.75 × 2,860.08
  4. Step 4: Simplify right side
    5,217.90x = 20,594,721.06
  5. Step 5: Solve for x
    x = 20,594,721.06/5,217.90
  6. Step 6: Final answer
    x = 3,946.94

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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.