Home / 3,929.29-5,894.80-1,297.60

Finding the Fourth Proportional to 3,929.29, 5,894.80 and 1,297.60

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Solution

The fourth proportional to 3,929.29, 5,894.80 and 1,297.60 is: 1,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.29 : 5,894.80 = 1,297.60 : x
  2. Step 2: Convert to fraction form
    3,929.29/5,894.80 = 1,297.60/x
  3. Step 3: Cross multiply
    3,929.29x = 5,894.80 × 1,297.60
  4. Step 4: Simplify right side
    3,929.29x = 7,649,074.50
  5. Step 5: Solve for x
    x = 7,649,074.50/3,929.29
  6. Step 6: Final answer
    x = 1,946.68

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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.