Home / 2,613.21-3,920.35-2,351.80

Finding the Fourth Proportional to 2,613.21, 3,920.35 and 2,351.80

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Solution

The fourth proportional to 2,613.21, 3,920.35 and 2,351.80 is: 3,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.21 : 3,920.35 = 2,351.80 : x
  2. Step 2: Convert to fraction form
    2,613.21/3,920.35 = 2,351.80/x
  3. Step 3: Cross multiply
    2,613.21x = 3,920.35 × 2,351.80
  4. Step 4: Simplify right side
    2,613.21x = 9,219,866.02
  5. Step 5: Solve for x
    x = 9,219,866.02/2,613.21
  6. Step 6: Final answer
    x = 3,528.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.