Home / 4,456.00-6,686.21-1,990.15

Finding the Fourth Proportional to 4,456.00, 6,686.21 and 1,990.15

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Solution

The fourth proportional to 4,456.00, 6,686.21 and 1,990.15 is: 2,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.00 : 6,686.21 = 1,990.15 : x
  2. Step 2: Convert to fraction form
    4,456.00/6,686.21 = 1,990.15/x
  3. Step 3: Cross multiply
    4,456.00x = 6,686.21 × 1,990.15
  4. Step 4: Simplify right side
    4,456.00x = 13,306,586.70
  5. Step 5: Solve for x
    x = 13,306,586.70/4,456.00
  6. Step 6: Final answer
    x = 2,986.22

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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.