Home / 2,911.23-4,369.59-1,938.01

Finding the Fourth Proportional to 2,911.23, 4,369.59 and 1,938.01

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Solution

The fourth proportional to 2,911.23, 4,369.59 and 1,938.01 is: 2,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.23 : 4,369.59 = 1,938.01 : x
  2. Step 2: Convert to fraction form
    2,911.23/4,369.59 = 1,938.01/x
  3. Step 3: Cross multiply
    2,911.23x = 4,369.59 × 1,938.01
  4. Step 4: Simplify right side
    2,911.23x = 8,468,309.12
  5. Step 5: Solve for x
    x = 8,468,309.12/2,911.23
  6. Step 6: Final answer
    x = 2,908.84

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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.