Home / 3,930.10-5,894.95-1,333.06

Finding the Fourth Proportional to 3,930.10, 5,894.95 and 1,333.06

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Solution

The fourth proportional to 3,930.10, 5,894.95 and 1,333.06 is: 1,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.10 : 5,894.95 = 1,333.06 : x
  2. Step 2: Convert to fraction form
    3,930.10/5,894.95 = 1,333.06/x
  3. Step 3: Cross multiply
    3,930.10x = 5,894.95 × 1,333.06
  4. Step 4: Simplify right side
    3,930.10x = 7,858,322.05
  5. Step 5: Solve for x
    x = 7,858,322.05/3,930.10
  6. Step 6: Final answer
    x = 1,999.52

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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.