Home / 1,177.86-1,624.41-823.35

Finding the Fourth Proportional to 1,177.86, 1,624.41 and 823.35

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Solution

The fourth proportional to 1,177.86, 1,624.41 and 823.35 is: 1,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.86 : 1,624.41 = 823.35 : x
  2. Step 2: Convert to fraction form
    1,177.86/1,624.41 = 823.35/x
  3. Step 3: Cross multiply
    1,177.86x = 1,624.41 × 823.35
  4. Step 4: Simplify right side
    1,177.86x = 1,337,457.97
  5. Step 5: Solve for x
    x = 1,337,457.97/1,177.86
  6. Step 6: Final answer
    x = 1,135.50

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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.