Home / 7,793.10-11,688.30-2,860.20

Finding the Fourth Proportional to 7,793.10, 11,688.30 and 2,860.20

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Solution

The fourth proportional to 7,793.10, 11,688.30 and 2,860.20 is: 4,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.10 : 11,688.30 = 2,860.20 : x
  2. Step 2: Convert to fraction form
    7,793.10/11,688.30 = 2,860.20/x
  3. Step 3: Cross multiply
    7,793.10x = 11,688.30 × 2,860.20
  4. Step 4: Simplify right side
    7,793.10x = 33,430,875.66
  5. Step 5: Solve for x
    x = 33,430,875.66/7,793.10
  6. Step 6: Final answer
    x = 4,289.80

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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.