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Finding the Fourth Proportional to 1,051.82, 1,451.44 and 632.19

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Solution

The fourth proportional to 1,051.82, 1,451.44 and 632.19 is: 872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.82 : 1,451.44 = 632.19 : x
  2. Step 2: Convert to fraction form
    1,051.82/1,451.44 = 632.19/x
  3. Step 3: Cross multiply
    1,051.82x = 1,451.44 × 632.19
  4. Step 4: Simplify right side
    1,051.82x = 917,585.85
  5. Step 5: Solve for x
    x = 917,585.85/1,051.82
  6. Step 6: Final answer
    x = 872.38

Related Problems

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Half scale
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Double scale
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1.5x scale

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.