Home / 3,885.60-5,362.12-2,206.93

Finding the Fourth Proportional to 3,885.60, 5,362.12 and 2,206.93

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Solution

The fourth proportional to 3,885.60, 5,362.12 and 2,206.93 is: 3,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.60 : 5,362.12 = 2,206.93 : x
  2. Step 2: Convert to fraction form
    3,885.60/5,362.12 = 2,206.93/x
  3. Step 3: Cross multiply
    3,885.60x = 5,362.12 × 2,206.93
  4. Step 4: Simplify right side
    3,885.60x = 11,833,829.11
  5. Step 5: Solve for x
    x = 11,833,829.11/3,885.60
  6. Step 6: Final answer
    x = 3,045.56

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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.