Home / 1,528.17-2,291.83-603.71

Finding the Fourth Proportional to 1,528.17, 2,291.83 and 603.71

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Solution

The fourth proportional to 1,528.17, 2,291.83 and 603.71 is: 905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.17 : 2,291.83 = 603.71 : x
  2. Step 2: Convert to fraction form
    1,528.17/2,291.83 = 603.71/x
  3. Step 3: Cross multiply
    1,528.17x = 2,291.83 × 603.71
  4. Step 4: Simplify right side
    1,528.17x = 1,383,600.69
  5. Step 5: Solve for x
    x = 1,383,600.69/1,528.17
  6. Step 6: Final answer
    x = 905.40

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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.