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Finding the Fourth Proportional to 1,528.82, 2,291.67 and 603.10

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Solution

The fourth proportional to 1,528.82, 2,291.67 and 603.10 is: 904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.82 : 2,291.67 = 603.10 : x
  2. Step 2: Convert to fraction form
    1,528.82/2,291.67 = 603.10/x
  3. Step 3: Cross multiply
    1,528.82x = 2,291.67 × 603.10
  4. Step 4: Simplify right side
    1,528.82x = 1,382,103.16
  5. Step 5: Solve for x
    x = 1,382,103.16/1,528.82
  6. Step 6: Final answer
    x = 904.04

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Double scale
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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.