Home / 3,860.87-5,333.04-3,117.60

Finding the Fourth Proportional to 3,860.87, 5,333.04 and 3,117.60

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Solution

The fourth proportional to 3,860.87, 5,333.04 and 3,117.60 is: 4,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.87 : 5,333.04 = 3,117.60 : x
  2. Step 2: Convert to fraction form
    3,860.87/5,333.04 = 3,117.60/x
  3. Step 3: Cross multiply
    3,860.87x = 5,333.04 × 3,117.60
  4. Step 4: Simplify right side
    3,860.87x = 16,626,285.50
  5. Step 5: Solve for x
    x = 16,626,285.50/3,860.87
  6. Step 6: Final answer
    x = 4,306.36

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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.