Home / 3,291.57-4,938.12-1,070.30

Finding the Fourth Proportional to 3,291.57, 4,938.12 and 1,070.30

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Solution

The fourth proportional to 3,291.57, 4,938.12 and 1,070.30 is: 1,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.57 : 4,938.12 = 1,070.30 : x
  2. Step 2: Convert to fraction form
    3,291.57/4,938.12 = 1,070.30/x
  3. Step 3: Cross multiply
    3,291.57x = 4,938.12 × 1,070.30
  4. Step 4: Simplify right side
    3,291.57x = 5,285,282.18
  5. Step 5: Solve for x
    x = 5,285,282.18/3,291.57
  6. Step 6: Final answer
    x = 1,605.70

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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.