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Finding the Fourth Proportional to 2,670.83, 4,005.23 and 1,283.77

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Solution

The fourth proportional to 2,670.83, 4,005.23 and 1,283.77 is: 1,925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.83 : 4,005.23 = 1,283.77 : x
  2. Step 2: Convert to fraction form
    2,670.83/4,005.23 = 1,283.77/x
  3. Step 3: Cross multiply
    2,670.83x = 4,005.23 × 1,283.77
  4. Step 4: Simplify right side
    2,670.83x = 5,141,794.12
  5. Step 5: Solve for x
    x = 5,141,794.12/2,670.83
  6. Step 6: Final answer
    x = 1,925.17

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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.