Home / 2,905.65-4,358.52-2,220.93

Finding the Fourth Proportional to 2,905.65, 4,358.52 and 2,220.93

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Solution

The fourth proportional to 2,905.65, 4,358.52 and 2,220.93 is: 3,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.65 : 4,358.52 = 2,220.93 : x
  2. Step 2: Convert to fraction form
    2,905.65/4,358.52 = 2,220.93/x
  3. Step 3: Cross multiply
    2,905.65x = 4,358.52 × 2,220.93
  4. Step 4: Simplify right side
    2,905.65x = 9,679,967.82
  5. Step 5: Solve for x
    x = 9,679,967.82/2,905.65
  6. Step 6: Final answer
    x = 3,331.43

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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.