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Finding the Fourth Proportional to 1,528.86, 2,293.46 and 488.49

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Solution

The fourth proportional to 1,528.86, 2,293.46 and 488.49 is: 732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.86 : 2,293.46 = 488.49 : x
  2. Step 2: Convert to fraction form
    1,528.86/2,293.46 = 488.49/x
  3. Step 3: Cross multiply
    1,528.86x = 2,293.46 × 488.49
  4. Step 4: Simplify right side
    1,528.86x = 1,120,332.28
  5. Step 5: Solve for x
    x = 1,120,332.28/1,528.86
  6. Step 6: Final answer
    x = 732.79

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1.5x scale

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.