Home / 3,408.55-5,113.59-1,217.50

Finding the Fourth Proportional to 3,408.55, 5,113.59 and 1,217.50

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Solution

The fourth proportional to 3,408.55, 5,113.59 and 1,217.50 is: 1,826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.55 : 5,113.59 = 1,217.50 : x
  2. Step 2: Convert to fraction form
    3,408.55/5,113.59 = 1,217.50/x
  3. Step 3: Cross multiply
    3,408.55x = 5,113.59 × 1,217.50
  4. Step 4: Simplify right side
    3,408.55x = 6,225,795.83
  5. Step 5: Solve for x
    x = 6,225,795.83/3,408.55
  6. Step 6: Final answer
    x = 1,826.52

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Double scale
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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.