Home / 2,565.53-3,848.30-1,981.39

Finding the Fourth Proportional to 2,565.53, 3,848.30 and 1,981.39

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Solution

The fourth proportional to 2,565.53, 3,848.30 and 1,981.39 is: 2,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.53 : 3,848.30 = 1,981.39 : x
  2. Step 2: Convert to fraction form
    2,565.53/3,848.30 = 1,981.39/x
  3. Step 3: Cross multiply
    2,565.53x = 3,848.30 × 1,981.39
  4. Step 4: Simplify right side
    2,565.53x = 7,624,983.14
  5. Step 5: Solve for x
    x = 7,624,983.14/2,565.53
  6. Step 6: Final answer
    x = 2,972.09

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Similar ratio
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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.