Home / 7,124.12-10,686.23-2,193.80

Finding the Fourth Proportional to 7,124.12, 10,686.23 and 2,193.80

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Solution

The fourth proportional to 7,124.12, 10,686.23 and 2,193.80 is: 3,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.12 : 10,686.23 = 2,193.80 : x
  2. Step 2: Convert to fraction form
    7,124.12/10,686.23 = 2,193.80/x
  3. Step 3: Cross multiply
    7,124.12x = 10,686.23 × 2,193.80
  4. Step 4: Simplify right side
    7,124.12x = 23,443,451.37
  5. Step 5: Solve for x
    x = 23,443,451.37/7,124.12
  6. Step 6: Final answer
    x = 3,290.72

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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.