Home / 4,921.06-7,381.68-1,458.32

Finding the Fourth Proportional to 4,921.06, 7,381.68 and 1,458.32

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Solution

The fourth proportional to 4,921.06, 7,381.68 and 1,458.32 is: 2,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.06 : 7,381.68 = 1,458.32 : x
  2. Step 2: Convert to fraction form
    4,921.06/7,381.68 = 1,458.32/x
  3. Step 3: Cross multiply
    4,921.06x = 7,381.68 × 1,458.32
  4. Step 4: Simplify right side
    4,921.06x = 10,764,851.58
  5. Step 5: Solve for x
    x = 10,764,851.58/4,921.06
  6. Step 6: Final answer
    x = 2,187.51

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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.