Home / 3,929.40-5,894.60-1,297.18

Finding the Fourth Proportional to 3,929.40, 5,894.60 and 1,297.18

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Solution

The fourth proportional to 3,929.40, 5,894.60 and 1,297.18 is: 1,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.40 : 5,894.60 = 1,297.18 : x
  2. Step 2: Convert to fraction form
    3,929.40/5,894.60 = 1,297.18/x
  3. Step 3: Cross multiply
    3,929.40x = 5,894.60 × 1,297.18
  4. Step 4: Simplify right side
    3,929.40x = 7,646,357.23
  5. Step 5: Solve for x
    x = 7,646,357.23/3,929.40
  6. Step 6: Final answer
    x = 1,945.94

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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.