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Finding the Fourth Proportional to 1,057.02, 1,585.62 and 569.97

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Solution

The fourth proportional to 1,057.02, 1,585.62 and 569.97 is: 855.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.02 : 1,585.62 = 569.97 : x
  2. Step 2: Convert to fraction form
    1,057.02/1,585.62 = 569.97/x
  3. Step 3: Cross multiply
    1,057.02x = 1,585.62 × 569.97
  4. Step 4: Simplify right side
    1,057.02x = 903,755.83
  5. Step 5: Solve for x
    x = 903,755.83/1,057.02
  6. Step 6: Final answer
    x = 855.00

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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.