Home / 1,639.92-2,459.34-1,095.06

Finding the Fourth Proportional to 1,639.92, 2,459.34 and 1,095.06

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Solution

The fourth proportional to 1,639.92, 2,459.34 and 1,095.06 is: 1,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.92 : 2,459.34 = 1,095.06 : x
  2. Step 2: Convert to fraction form
    1,639.92/2,459.34 = 1,095.06/x
  3. Step 3: Cross multiply
    1,639.92x = 2,459.34 × 1,095.06
  4. Step 4: Simplify right side
    1,639.92x = 2,693,124.86
  5. Step 5: Solve for x
    x = 2,693,124.86/1,639.92
  6. Step 6: Final answer
    x = 1,642.23

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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.