Home / 2,929.10-4,396.08-1,286.82

Finding the Fourth Proportional to 2,929.10, 4,396.08 and 1,286.82

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Solution

The fourth proportional to 2,929.10, 4,396.08 and 1,286.82 is: 1,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.10 : 4,396.08 = 1,286.82 : x
  2. Step 2: Convert to fraction form
    2,929.10/4,396.08 = 1,286.82/x
  3. Step 3: Cross multiply
    2,929.10x = 4,396.08 × 1,286.82
  4. Step 4: Simplify right side
    2,929.10x = 5,656,963.67
  5. Step 5: Solve for x
    x = 5,656,963.67/2,929.10
  6. Step 6: Final answer
    x = 1,931.30

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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.