Home / 1,428.04-2,126.84-1,344.28

Finding the Fourth Proportional to 1,428.04, 2,126.84 and 1,344.28

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Solution

The fourth proportional to 1,428.04, 2,126.84 and 1,344.28 is: 2,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428.04 : 2,126.84 = 1,344.28 : x
  2. Step 2: Convert to fraction form
    1,428.04/2,126.84 = 1,344.28/x
  3. Step 3: Cross multiply
    1,428.04x = 2,126.84 × 1,344.28
  4. Step 4: Simplify right side
    1,428.04x = 2,859,068.48
  5. Step 5: Solve for x
    x = 2,859,068.48/1,428.04
  6. Step 6: Final answer
    x = 2,002.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.