Home / 1,455.18-2,182.53-1,209.96

Finding the Fourth Proportional to 1,455.18, 2,182.53 and 1,209.96

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Solution

The fourth proportional to 1,455.18, 2,182.53 and 1,209.96 is: 1,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.18 : 2,182.53 = 1,209.96 : x
  2. Step 2: Convert to fraction form
    1,455.18/2,182.53 = 1,209.96/x
  3. Step 3: Cross multiply
    1,455.18x = 2,182.53 × 1,209.96
  4. Step 4: Simplify right side
    1,455.18x = 2,640,774.00
  5. Step 5: Solve for x
    x = 2,640,774.00/1,455.18
  6. Step 6: Final answer
    x = 1,814.74

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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.