Home / 2,127.38-2,935.35-1,243.01

Finding the Fourth Proportional to 2,127.38, 2,935.35 and 1,243.01

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Solution

The fourth proportional to 2,127.38, 2,935.35 and 1,243.01 is: 1,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.38 : 2,935.35 = 1,243.01 : x
  2. Step 2: Convert to fraction form
    2,127.38/2,935.35 = 1,243.01/x
  3. Step 3: Cross multiply
    2,127.38x = 2,935.35 × 1,243.01
  4. Step 4: Simplify right side
    2,127.38x = 3,648,664.99
  5. Step 5: Solve for x
    x = 3,648,664.99/2,127.38
  6. Step 6: Final answer
    x = 1,715.10

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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.