Home / 2,881.56-4,320.36-1,904.70

Finding the Fourth Proportional to 2,881.56, 4,320.36 and 1,904.70

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Solution

The fourth proportional to 2,881.56, 4,320.36 and 1,904.70 is: 2,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.56 : 4,320.36 = 1,904.70 : x
  2. Step 2: Convert to fraction form
    2,881.56/4,320.36 = 1,904.70/x
  3. Step 3: Cross multiply
    2,881.56x = 4,320.36 × 1,904.70
  4. Step 4: Simplify right side
    2,881.56x = 8,228,989.69
  5. Step 5: Solve for x
    x = 8,228,989.69/2,881.56
  6. Step 6: Final answer
    x = 2,855.74

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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.