Home / 3,030.40-4,539.12-1,872.64

Finding the Fourth Proportional to 3,030.40, 4,539.12 and 1,872.64

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Solution

The fourth proportional to 3,030.40, 4,539.12 and 1,872.64 is: 2,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.40 : 4,539.12 = 1,872.64 : x
  2. Step 2: Convert to fraction form
    3,030.40/4,539.12 = 1,872.64/x
  3. Step 3: Cross multiply
    3,030.40x = 4,539.12 × 1,872.64
  4. Step 4: Simplify right side
    3,030.40x = 8,500,137.68
  5. Step 5: Solve for x
    x = 8,500,137.68/3,030.40
  6. Step 6: Final answer
    x = 2,804.96

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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.