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Finding the Fourth Proportional to 1,052.80, 1,579.46 and 475.52

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Solution

The fourth proportional to 1,052.80, 1,579.46 and 475.52 is: 713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.80 : 1,579.46 = 475.52 : x
  2. Step 2: Convert to fraction form
    1,052.80/1,579.46 = 475.52/x
  3. Step 3: Cross multiply
    1,052.80x = 1,579.46 × 475.52
  4. Step 4: Simplify right side
    1,052.80x = 751,064.82
  5. Step 5: Solve for x
    x = 751,064.82/1,052.80
  6. Step 6: Final answer
    x = 713.40

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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.