Home / 1,508.09-2,259.12-1,379.60

Finding the Fourth Proportional to 1,508.09, 2,259.12 and 1,379.60

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Solution

The fourth proportional to 1,508.09, 2,259.12 and 1,379.60 is: 2,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.09 : 2,259.12 = 1,379.60 : x
  2. Step 2: Convert to fraction form
    1,508.09/2,259.12 = 1,379.60/x
  3. Step 3: Cross multiply
    1,508.09x = 2,259.12 × 1,379.60
  4. Step 4: Simplify right side
    1,508.09x = 3,116,681.95
  5. Step 5: Solve for x
    x = 3,116,681.95/1,508.09
  6. Step 6: Final answer
    x = 2,066.64

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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.