Home / 3,921.06-5,881.55-999.36

Finding the Fourth Proportional to 3,921.06, 5,881.55 and 999.36

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Solution

The fourth proportional to 3,921.06, 5,881.55 and 999.36 is: 1,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.06 : 5,881.55 = 999.36 : x
  2. Step 2: Convert to fraction form
    3,921.06/5,881.55 = 999.36/x
  3. Step 3: Cross multiply
    3,921.06x = 5,881.55 × 999.36
  4. Step 4: Simplify right side
    3,921.06x = 5,877,780.81
  5. Step 5: Solve for x
    x = 5,877,780.81/3,921.06
  6. Step 6: Final answer
    x = 1,499.03

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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.