Home / 6,875.13-10,311.77-1,945.16

Finding the Fourth Proportional to 6,875.13, 10,311.77 and 1,945.16

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Solution

The fourth proportional to 6,875.13, 10,311.77 and 1,945.16 is: 2,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.13 : 10,311.77 = 1,945.16 : x
  2. Step 2: Convert to fraction form
    6,875.13/10,311.77 = 1,945.16/x
  3. Step 3: Cross multiply
    6,875.13x = 10,311.77 × 1,945.16
  4. Step 4: Simplify right side
    6,875.13x = 20,057,981.25
  5. Step 5: Solve for x
    x = 20,057,981.25/6,875.13
  6. Step 6: Final answer
    x = 2,917.47

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1.5x scale

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.