Home / 2,919.13-4,380.36-1,070.00

Finding the Fourth Proportional to 2,919.13, 4,380.36 and 1,070.00

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Solution

The fourth proportional to 2,919.13, 4,380.36 and 1,070.00 is: 1,605.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.13 : 4,380.36 = 1,070.00 : x
  2. Step 2: Convert to fraction form
    2,919.13/4,380.36 = 1,070.00/x
  3. Step 3: Cross multiply
    2,919.13x = 4,380.36 × 1,070.00
  4. Step 4: Simplify right side
    2,919.13x = 4,686,981.73
  5. Step 5: Solve for x
    x = 4,686,981.73/2,919.13
  6. Step 6: Final answer
    x = 1,605.61

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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.