Home / 6,887.86-10,315.34-3,763.20

Finding the Fourth Proportional to 6,887.86, 10,315.34 and 3,763.20

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Solution

The fourth proportional to 6,887.86, 10,315.34 and 3,763.20 is: 5,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.86 : 10,315.34 = 3,763.20 : x
  2. Step 2: Convert to fraction form
    6,887.86/10,315.34 = 3,763.20/x
  3. Step 3: Cross multiply
    6,887.86x = 10,315.34 × 3,763.20
  4. Step 4: Simplify right side
    6,887.86x = 38,818,687.49
  5. Step 5: Solve for x
    x = 38,818,687.49/6,887.86
  6. Step 6: Final answer
    x = 5,635.81

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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.