Home / 1,528.61-2,294.62-1,428.23

Finding the Fourth Proportional to 1,528.61, 2,294.62 and 1,428.23

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Solution

The fourth proportional to 1,528.61, 2,294.62 and 1,428.23 is: 2,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.61 : 2,294.62 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    1,528.61/2,294.62 = 1,428.23/x
  3. Step 3: Cross multiply
    1,528.61x = 2,294.62 × 1,428.23
  4. Step 4: Simplify right side
    1,528.61x = 3,277,242.42
  5. Step 5: Solve for x
    x = 3,277,242.42/1,528.61
  6. Step 6: Final answer
    x = 2,143.94

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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.