Home / 3,290.55-4,936.05-1,038.89

Finding the Fourth Proportional to 3,290.55, 4,936.05 and 1,038.89

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Solution

The fourth proportional to 3,290.55, 4,936.05 and 1,038.89 is: 1,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.55 : 4,936.05 = 1,038.89 : x
  2. Step 2: Convert to fraction form
    3,290.55/4,936.05 = 1,038.89/x
  3. Step 3: Cross multiply
    3,290.55x = 4,936.05 × 1,038.89
  4. Step 4: Simplify right side
    3,290.55x = 5,127,988.30
  5. Step 5: Solve for x
    x = 5,127,988.30/3,290.55
  6. Step 6: Final answer
    x = 1,558.40

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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.