Home / 5,690.64-7,852.31-3,172.46

Finding the Fourth Proportional to 5,690.64, 7,852.31 and 3,172.46

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Solution

The fourth proportional to 5,690.64, 7,852.31 and 3,172.46 is: 4,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.64 : 7,852.31 = 3,172.46 : x
  2. Step 2: Convert to fraction form
    5,690.64/7,852.31 = 3,172.46/x
  3. Step 3: Cross multiply
    5,690.64x = 7,852.31 × 3,172.46
  4. Step 4: Simplify right side
    5,690.64x = 24,911,084.26
  5. Step 5: Solve for x
    x = 24,911,084.26/5,690.64
  6. Step 6: Final answer
    x = 4,377.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.