Home / 2,930.99-4,044.08-2,143.67

Finding the Fourth Proportional to 2,930.99, 4,044.08 and 2,143.67

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Solution

The fourth proportional to 2,930.99, 4,044.08 and 2,143.67 is: 2,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.99 : 4,044.08 = 2,143.67 : x
  2. Step 2: Convert to fraction form
    2,930.99/4,044.08 = 2,143.67/x
  3. Step 3: Cross multiply
    2,930.99x = 4,044.08 × 2,143.67
  4. Step 4: Simplify right side
    2,930.99x = 8,669,162.26
  5. Step 5: Solve for x
    x = 8,669,162.26/2,930.99
  6. Step 6: Final answer
    x = 2,957.76

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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.