Home / 1,486.23-2,051.10-823.11

Finding the Fourth Proportional to 1,486.23, 2,051.10 and 823.11

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Solution

The fourth proportional to 1,486.23, 2,051.10 and 823.11 is: 1,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.23 : 2,051.10 = 823.11 : x
  2. Step 2: Convert to fraction form
    1,486.23/2,051.10 = 823.11/x
  3. Step 3: Cross multiply
    1,486.23x = 2,051.10 × 823.11
  4. Step 4: Simplify right side
    1,486.23x = 1,688,280.92
  5. Step 5: Solve for x
    x = 1,688,280.92/1,486.23
  6. Step 6: Final answer
    x = 1,135.95

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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.