Home / 3,608.21-5,390.08-2,613.13

Finding the Fourth Proportional to 3,608.21, 5,390.08 and 2,613.13

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Solution

The fourth proportional to 3,608.21, 5,390.08 and 2,613.13 is: 3,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.21 : 5,390.08 = 2,613.13 : x
  2. Step 2: Convert to fraction form
    3,608.21/5,390.08 = 2,613.13/x
  3. Step 3: Cross multiply
    3,608.21x = 5,390.08 × 2,613.13
  4. Step 4: Simplify right side
    3,608.21x = 14,084,959.74
  5. Step 5: Solve for x
    x = 14,084,959.74/3,608.21
  6. Step 6: Final answer
    x = 3,903.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.