Home / 1,519.70-2,096.22-929.21

Finding the Fourth Proportional to 1,519.70, 2,096.22 and 929.21

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Solution

The fourth proportional to 1,519.70, 2,096.22 and 929.21 is: 1,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.70 : 2,096.22 = 929.21 : x
  2. Step 2: Convert to fraction form
    1,519.70/2,096.22 = 929.21/x
  3. Step 3: Cross multiply
    1,519.70x = 2,096.22 × 929.21
  4. Step 4: Simplify right side
    1,519.70x = 1,947,818.11
  5. Step 5: Solve for x
    x = 1,947,818.11/1,519.70
  6. Step 6: Final answer
    x = 1,281.72

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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.