Home / 5,615.19-8,421.71-2,104.52

Finding the Fourth Proportional to 5,615.19, 8,421.71 and 2,104.52

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Solution

The fourth proportional to 5,615.19, 8,421.71 and 2,104.52 is: 3,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.19 : 8,421.71 = 2,104.52 : x
  2. Step 2: Convert to fraction form
    5,615.19/8,421.71 = 2,104.52/x
  3. Step 3: Cross multiply
    5,615.19x = 8,421.71 × 2,104.52
  4. Step 4: Simplify right side
    5,615.19x = 17,723,604.50
  5. Step 5: Solve for x
    x = 17,723,604.50/5,615.19
  6. Step 6: Final answer
    x = 3,156.37

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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.