Home / 3,929.86-5,894.70-1,332.64

Finding the Fourth Proportional to 3,929.86, 5,894.70 and 1,332.64

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Solution

The fourth proportional to 3,929.86, 5,894.70 and 1,332.64 is: 1,998.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.86 : 5,894.70 = 1,332.64 : x
  2. Step 2: Convert to fraction form
    3,929.86/5,894.70 = 1,332.64/x
  3. Step 3: Cross multiply
    3,929.86x = 5,894.70 × 1,332.64
  4. Step 4: Simplify right side
    3,929.86x = 7,855,513.01
  5. Step 5: Solve for x
    x = 7,855,513.01/3,929.86
  6. Step 6: Final answer
    x = 1,998.93

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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.