Home / 3,428.04-5,130.84-1,864.14

Finding the Fourth Proportional to 3,428.04, 5,130.84 and 1,864.14

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Solution

The fourth proportional to 3,428.04, 5,130.84 and 1,864.14 is: 2,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.04 : 5,130.84 = 1,864.14 : x
  2. Step 2: Convert to fraction form
    3,428.04/5,130.84 = 1,864.14/x
  3. Step 3: Cross multiply
    3,428.04x = 5,130.84 × 1,864.14
  4. Step 4: Simplify right side
    3,428.04x = 9,564,604.08
  5. Step 5: Solve for x
    x = 9,564,604.08/3,428.04
  6. Step 6: Final answer
    x = 2,790.11

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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.