Home / 2,643.91-3,966.71-1,657.33

Finding the Fourth Proportional to 2,643.91, 3,966.71 and 1,657.33

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Solution

The fourth proportional to 2,643.91, 3,966.71 and 1,657.33 is: 2,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.91 : 3,966.71 = 1,657.33 : x
  2. Step 2: Convert to fraction form
    2,643.91/3,966.71 = 1,657.33/x
  3. Step 3: Cross multiply
    2,643.91x = 3,966.71 × 1,657.33
  4. Step 4: Simplify right side
    2,643.91x = 6,574,129.28
  5. Step 5: Solve for x
    x = 6,574,129.28/2,643.91
  6. Step 6: Final answer
    x = 2,486.52

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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.