Home / 1,665.79-2,496.91-1,253.66

Finding the Fourth Proportional to 1,665.79, 2,496.91 and 1,253.66

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Solution

The fourth proportional to 1,665.79, 2,496.91 and 1,253.66 is: 1,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.79 : 2,496.91 = 1,253.66 : x
  2. Step 2: Convert to fraction form
    1,665.79/2,496.91 = 1,253.66/x
  3. Step 3: Cross multiply
    1,665.79x = 2,496.91 × 1,253.66
  4. Step 4: Simplify right side
    1,665.79x = 3,130,276.19
  5. Step 5: Solve for x
    x = 3,130,276.19/1,665.79
  6. Step 6: Final answer
    x = 1,879.15

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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.