Home / 4,920.52-7,380.30-1,410.40

Finding the Fourth Proportional to 4,920.52, 7,380.30 and 1,410.40

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Solution

The fourth proportional to 4,920.52, 7,380.30 and 1,410.40 is: 2,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.52 : 7,380.30 = 1,410.40 : x
  2. Step 2: Convert to fraction form
    4,920.52/7,380.30 = 1,410.40/x
  3. Step 3: Cross multiply
    4,920.52x = 7,380.30 × 1,410.40
  4. Step 4: Simplify right side
    4,920.52x = 10,409,175.12
  5. Step 5: Solve for x
    x = 10,409,175.12/4,920.52
  6. Step 6: Final answer
    x = 2,115.46

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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.