Home / 7,114.28-9,817.94-4,129.93

Finding the Fourth Proportional to 7,114.28, 9,817.94 and 4,129.93

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Solution

The fourth proportional to 7,114.28, 9,817.94 and 4,129.93 is: 5,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.28 : 9,817.94 = 4,129.93 : x
  2. Step 2: Convert to fraction form
    7,114.28/9,817.94 = 4,129.93/x
  3. Step 3: Cross multiply
    7,114.28x = 9,817.94 × 4,129.93
  4. Step 4: Simplify right side
    7,114.28x = 40,547,359.75
  5. Step 5: Solve for x
    x = 40,547,359.75/7,114.28
  6. Step 6: Final answer
    x = 5,699.44

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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.