Home / 3,111.45-4,666.20-1,030.98

Finding the Fourth Proportional to 3,111.45, 4,666.20 and 1,030.98

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Solution

The fourth proportional to 3,111.45, 4,666.20 and 1,030.98 is: 1,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.45 : 4,666.20 = 1,030.98 : x
  2. Step 2: Convert to fraction form
    3,111.45/4,666.20 = 1,030.98/x
  3. Step 3: Cross multiply
    3,111.45x = 4,666.20 × 1,030.98
  4. Step 4: Simplify right side
    3,111.45x = 4,810,758.88
  5. Step 5: Solve for x
    x = 4,810,758.88/3,111.45
  6. Step 6: Final answer
    x = 1,546.15

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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.