Home / 2,989.30-4,127.13-2,046.67

Finding the Fourth Proportional to 2,989.30, 4,127.13 and 2,046.67

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Solution

The fourth proportional to 2,989.30, 4,127.13 and 2,046.67 is: 2,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.30 : 4,127.13 = 2,046.67 : x
  2. Step 2: Convert to fraction form
    2,989.30/4,127.13 = 2,046.67/x
  3. Step 3: Cross multiply
    2,989.30x = 4,127.13 × 2,046.67
  4. Step 4: Simplify right side
    2,989.30x = 8,446,873.16
  5. Step 5: Solve for x
    x = 8,446,873.16/2,989.30
  6. Step 6: Final answer
    x = 2,825.70

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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.