Home / 2,113.19-2,917.63-1,316.83

Finding the Fourth Proportional to 2,113.19, 2,917.63 and 1,316.83

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Solution

The fourth proportional to 2,113.19, 2,917.63 and 1,316.83 is: 1,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.19 : 2,917.63 = 1,316.83 : x
  2. Step 2: Convert to fraction form
    2,113.19/2,917.63 = 1,316.83/x
  3. Step 3: Cross multiply
    2,113.19x = 2,917.63 × 1,316.83
  4. Step 4: Simplify right side
    2,113.19x = 3,842,001.54
  5. Step 5: Solve for x
    x = 3,842,001.54/2,113.19
  6. Step 6: Final answer
    x = 1,818.11

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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.