Home / 2,985.05-4,119.30-1,658.67

Finding the Fourth Proportional to 2,985.05, 4,119.30 and 1,658.67

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Solution

The fourth proportional to 2,985.05, 4,119.30 and 1,658.67 is: 2,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.05 : 4,119.30 = 1,658.67 : x
  2. Step 2: Convert to fraction form
    2,985.05/4,119.30 = 1,658.67/x
  3. Step 3: Cross multiply
    2,985.05x = 4,119.30 × 1,658.67
  4. Step 4: Simplify right side
    2,985.05x = 6,832,559.33
  5. Step 5: Solve for x
    x = 6,832,559.33/2,985.05
  6. Step 6: Final answer
    x = 2,288.93

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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.