Home / 3,510.51-5,265.36-1,428.42

Finding the Fourth Proportional to 3,510.51, 5,265.36 and 1,428.42

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Solution

The fourth proportional to 3,510.51, 5,265.36 and 1,428.42 is: 2,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.51 : 5,265.36 = 1,428.42 : x
  2. Step 2: Convert to fraction form
    3,510.51/5,265.36 = 1,428.42/x
  3. Step 3: Cross multiply
    3,510.51x = 5,265.36 × 1,428.42
  4. Step 4: Simplify right side
    3,510.51x = 7,521,145.53
  5. Step 5: Solve for x
    x = 7,521,145.53/3,510.51
  6. Step 6: Final answer
    x = 2,142.47

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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.