Home / 3,580.21-5,369.29-1,240.12

Finding the Fourth Proportional to 3,580.21, 5,369.29 and 1,240.12

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Solution

The fourth proportional to 3,580.21, 5,369.29 and 1,240.12 is: 1,859.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.21 : 5,369.29 = 1,240.12 : x
  2. Step 2: Convert to fraction form
    3,580.21/5,369.29 = 1,240.12/x
  3. Step 3: Cross multiply
    3,580.21x = 5,369.29 × 1,240.12
  4. Step 4: Simplify right side
    3,580.21x = 6,658,563.91
  5. Step 5: Solve for x
    x = 6,658,563.91/3,580.21
  6. Step 6: Final answer
    x = 1,859.82

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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.