Home / 1,530.56-2,110.12-1,216.85

Finding the Fourth Proportional to 1,530.56, 2,110.12 and 1,216.85

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Solution

The fourth proportional to 1,530.56, 2,110.12 and 1,216.85 is: 1,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.56 : 2,110.12 = 1,216.85 : x
  2. Step 2: Convert to fraction form
    1,530.56/2,110.12 = 1,216.85/x
  3. Step 3: Cross multiply
    1,530.56x = 2,110.12 × 1,216.85
  4. Step 4: Simplify right side
    1,530.56x = 2,567,699.52
  5. Step 5: Solve for x
    x = 2,567,699.52/1,530.56
  6. Step 6: Final answer
    x = 1,677.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.