Home / 4,122.35-5,688.78-2,353.91

Finding the Fourth Proportional to 4,122.35, 5,688.78 and 2,353.91

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Solution

The fourth proportional to 4,122.35, 5,688.78 and 2,353.91 is: 3,248.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.35 : 5,688.78 = 2,353.91 : x
  2. Step 2: Convert to fraction form
    4,122.35/5,688.78 = 2,353.91/x
  3. Step 3: Cross multiply
    4,122.35x = 5,688.78 × 2,353.91
  4. Step 4: Simplify right side
    4,122.35x = 13,390,847.69
  5. Step 5: Solve for x
    x = 13,390,847.69/4,122.35
  6. Step 6: Final answer
    x = 3,248.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.