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Finding the Fourth Proportional to 1,051.66, 1,451.29 and 585.91

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Solution

The fourth proportional to 1,051.66, 1,451.29 and 585.91 is: 808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.66 : 1,451.29 = 585.91 : x
  2. Step 2: Convert to fraction form
    1,051.66/1,451.29 = 585.91/x
  3. Step 3: Cross multiply
    1,051.66x = 1,451.29 × 585.91
  4. Step 4: Simplify right side
    1,051.66x = 850,325.32
  5. Step 5: Solve for x
    x = 850,325.32/1,051.66
  6. Step 6: Final answer
    x = 808.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.