Home / 1,528.10-2,292.30-603.75

Finding the Fourth Proportional to 1,528.10, 2,292.30 and 603.75

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Solution

The fourth proportional to 1,528.10, 2,292.30 and 603.75 is: 905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.10 : 2,292.30 = 603.75 : x
  2. Step 2: Convert to fraction form
    1,528.10/2,292.30 = 603.75/x
  3. Step 3: Cross multiply
    1,528.10x = 2,292.30 × 603.75
  4. Step 4: Simplify right side
    1,528.10x = 1,383,976.13
  5. Step 5: Solve for x
    x = 1,383,976.13/1,528.10
  6. Step 6: Final answer
    x = 905.68

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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.