Home / 7,108.86-10,666.36-3,818.10

Finding the Fourth Proportional to 7,108.86, 10,666.36 and 3,818.10

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Solution

The fourth proportional to 7,108.86, 10,666.36 and 3,818.10 is: 5,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.86 : 10,666.36 = 3,818.10 : x
  2. Step 2: Convert to fraction form
    7,108.86/10,666.36 = 3,818.10/x
  3. Step 3: Cross multiply
    7,108.86x = 10,666.36 × 3,818.10
  4. Step 4: Simplify right side
    7,108.86x = 40,725,229.12
  5. Step 5: Solve for x
    x = 40,725,229.12/7,108.86
  6. Step 6: Final answer
    x = 5,728.80

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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.