Home / 1,113.14-1,669.86-382.52

Finding the Fourth Proportional to 1,113.14, 1,669.86 and 382.52

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Solution

The fourth proportional to 1,113.14, 1,669.86 and 382.52 is: 573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.14 : 1,669.86 = 382.52 : x
  2. Step 2: Convert to fraction form
    1,113.14/1,669.86 = 382.52/x
  3. Step 3: Cross multiply
    1,113.14x = 1,669.86 × 382.52
  4. Step 4: Simplify right side
    1,113.14x = 638,746.50
  5. Step 5: Solve for x
    x = 638,746.50/1,113.14
  6. Step 6: Final answer
    x = 573.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.