Home / 1,486.36-2,051.14-823.17

Finding the Fourth Proportional to 1,486.36, 2,051.14 and 823.17

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Solution

The fourth proportional to 1,486.36, 2,051.14 and 823.17 is: 1,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.36 : 2,051.14 = 823.17 : x
  2. Step 2: Convert to fraction form
    1,486.36/2,051.14 = 823.17/x
  3. Step 3: Cross multiply
    1,486.36x = 2,051.14 × 823.17
  4. Step 4: Simplify right side
    1,486.36x = 1,688,432.55
  5. Step 5: Solve for x
    x = 1,688,432.55/1,486.36
  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.