Home / 1,535.50-2,303.27-381.25

Finding the Fourth Proportional to 1,535.50, 2,303.27 and 381.25

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Solution

The fourth proportional to 1,535.50, 2,303.27 and 381.25 is: 571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.50 : 2,303.27 = 381.25 : x
  2. Step 2: Convert to fraction form
    1,535.50/2,303.27 = 381.25/x
  3. Step 3: Cross multiply
    1,535.50x = 2,303.27 × 381.25
  4. Step 4: Simplify right side
    1,535.50x = 878,119.78
  5. Step 5: Solve for x
    x = 878,119.78/1,535.50
  6. Step 6: Final answer
    x = 571.88

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.