Home / 6,875.87-10,313.19-1,945.40

Finding the Fourth Proportional to 6,875.87, 10,313.19 and 1,945.40

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Solution

The fourth proportional to 6,875.87, 10,313.19 and 1,945.40 is: 2,917.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.87 : 10,313.19 = 1,945.40 : x
  2. Step 2: Convert to fraction form
    6,875.87/10,313.19 = 1,945.40/x
  3. Step 3: Cross multiply
    6,875.87x = 10,313.19 × 1,945.40
  4. Step 4: Simplify right side
    6,875.87x = 20,063,279.83
  5. Step 5: Solve for x
    x = 20,063,279.83/6,875.87
  6. Step 6: Final answer
    x = 2,917.93

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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.