Home / 1,486.42-2,051.23-823.27

Finding the Fourth Proportional to 1,486.42, 2,051.23 and 823.27

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Solution

The fourth proportional to 1,486.42, 2,051.23 and 823.27 is: 1,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.42 : 2,051.23 = 823.27 : x
  2. Step 2: Convert to fraction form
    1,486.42/2,051.23 = 823.27/x
  3. Step 3: Cross multiply
    1,486.42x = 2,051.23 × 823.27
  4. Step 4: Simplify right side
    1,486.42x = 1,688,716.12
  5. Step 5: Solve for x
    x = 1,688,716.12/1,486.42
  6. Step 6: Final answer
    x = 1,136.10

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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.