Home / 7,108.30-9,811.50-4,124.80

Finding the Fourth Proportional to 7,108.30, 9,811.50 and 4,124.80

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Solution

The fourth proportional to 7,108.30, 9,811.50 and 4,124.80 is: 5,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.30 : 9,811.50 = 4,124.80 : x
  2. Step 2: Convert to fraction form
    7,108.30/9,811.50 = 4,124.80/x
  3. Step 3: Cross multiply
    7,108.30x = 9,811.50 × 4,124.80
  4. Step 4: Simplify right side
    7,108.30x = 40,470,475.20
  5. Step 5: Solve for x
    x = 40,470,475.20/7,108.30
  6. Step 6: Final answer
    x = 5,693.41

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1.5x scale

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.