Home / 3,493.18-4,820.48-1,921.18

Finding the Fourth Proportional to 3,493.18, 4,820.48 and 1,921.18

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Solution

The fourth proportional to 3,493.18, 4,820.48 and 1,921.18 is: 2,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.18 : 4,820.48 = 1,921.18 : x
  2. Step 2: Convert to fraction form
    3,493.18/4,820.48 = 1,921.18/x
  3. Step 3: Cross multiply
    3,493.18x = 4,820.48 × 1,921.18
  4. Step 4: Simplify right side
    3,493.18x = 9,261,009.77
  5. Step 5: Solve for x
    x = 9,261,009.77/3,493.18
  6. Step 6: Final answer
    x = 2,651.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.