Home / 3,613.69-4,985.05-2,356.85

Finding the Fourth Proportional to 3,613.69, 4,985.05 and 2,356.85

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Solution

The fourth proportional to 3,613.69, 4,985.05 and 2,356.85 is: 3,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.69 : 4,985.05 = 2,356.85 : x
  2. Step 2: Convert to fraction form
    3,613.69/4,985.05 = 2,356.85/x
  3. Step 3: Cross multiply
    3,613.69x = 4,985.05 × 2,356.85
  4. Step 4: Simplify right side
    3,613.69x = 11,749,015.09
  5. Step 5: Solve for x
    x = 11,749,015.09/3,613.69
  6. Step 6: Final answer
    x = 3,251.25

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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.