Home / 4,290.31-6,435.19-1,368.91

Finding the Fourth Proportional to 4,290.31, 6,435.19 and 1,368.91

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Solution

The fourth proportional to 4,290.31, 6,435.19 and 1,368.91 is: 2,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.31 : 6,435.19 = 1,368.91 : x
  2. Step 2: Convert to fraction form
    4,290.31/6,435.19 = 1,368.91/x
  3. Step 3: Cross multiply
    4,290.31x = 6,435.19 × 1,368.91
  4. Step 4: Simplify right side
    4,290.31x = 8,809,195.94
  5. Step 5: Solve for x
    x = 8,809,195.94/4,290.31
  6. Step 6: Final answer
    x = 2,053.28

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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.