Home / 2,390.33-3,586.85-929.30

Finding the Fourth Proportional to 2,390.33, 3,586.85 and 929.30

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Solution

The fourth proportional to 2,390.33, 3,586.85 and 929.30 is: 1,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.33 : 3,586.85 = 929.30 : x
  2. Step 2: Convert to fraction form
    2,390.33/3,586.85 = 929.30/x
  3. Step 3: Cross multiply
    2,390.33x = 3,586.85 × 929.30
  4. Step 4: Simplify right side
    2,390.33x = 3,333,237.12
  5. Step 5: Solve for x
    x = 3,333,237.12/2,390.33
  6. Step 6: Final answer
    x = 1,394.47

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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.