Home / 2,929.48-4,394.72-1,286.19

Finding the Fourth Proportional to 2,929.48, 4,394.72 and 1,286.19

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Solution

The fourth proportional to 2,929.48, 4,394.72 and 1,286.19 is: 1,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.48 : 4,394.72 = 1,286.19 : x
  2. Step 2: Convert to fraction form
    2,929.48/4,394.72 = 1,286.19/x
  3. Step 3: Cross multiply
    2,929.48x = 4,394.72 × 1,286.19
  4. Step 4: Simplify right side
    2,929.48x = 5,652,448.13
  5. Step 5: Solve for x
    x = 5,652,448.13/2,929.48
  6. Step 6: Final answer
    x = 1,929.51

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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.