Home / 3,521.54-4,848.64-2,989.31

Finding the Fourth Proportional to 3,521.54, 4,848.64 and 2,989.31

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Solution

The fourth proportional to 3,521.54, 4,848.64 and 2,989.31 is: 4,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.54 : 4,848.64 = 2,989.31 : x
  2. Step 2: Convert to fraction form
    3,521.54/4,848.64 = 2,989.31/x
  3. Step 3: Cross multiply
    3,521.54x = 4,848.64 × 2,989.31
  4. Step 4: Simplify right side
    3,521.54x = 14,494,063.80
  5. Step 5: Solve for x
    x = 14,494,063.80/3,521.54
  6. Step 6: Final answer
    x = 4,115.84

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1.5x scale

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.