Home / 7,281.38-10,922.78-2,897.81

Finding the Fourth Proportional to 7,281.38, 10,922.78 and 2,897.81

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Solution

The fourth proportional to 7,281.38, 10,922.78 and 2,897.81 is: 4,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.38 : 10,922.78 = 2,897.81 : x
  2. Step 2: Convert to fraction form
    7,281.38/10,922.78 = 2,897.81/x
  3. Step 3: Cross multiply
    7,281.38x = 10,922.78 × 2,897.81
  4. Step 4: Simplify right side
    7,281.38x = 31,652,141.11
  5. Step 5: Solve for x
    x = 31,652,141.11/7,281.38
  6. Step 6: Final answer
    x = 4,347.00

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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.