Home / 3,512.46-5,271.89-1,870.39

Finding the Fourth Proportional to 3,512.46, 5,271.89 and 1,870.39

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Solution

The fourth proportional to 3,512.46, 5,271.89 and 1,870.39 is: 2,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.46 : 5,271.89 = 1,870.39 : x
  2. Step 2: Convert to fraction form
    3,512.46/5,271.89 = 1,870.39/x
  3. Step 3: Cross multiply
    3,512.46x = 5,271.89 × 1,870.39
  4. Step 4: Simplify right side
    3,512.46x = 9,860,487.58
  5. Step 5: Solve for x
    x = 9,860,487.58/3,512.46
  6. Step 6: Final answer
    x = 2,807.29

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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.