Home / 1,615.48-2,227.58-1,117.25

Finding the Fourth Proportional to 1,615.48, 2,227.58 and 1,117.25

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Solution

The fourth proportional to 1,615.48, 2,227.58 and 1,117.25 is: 1,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.48 : 2,227.58 = 1,117.25 : x
  2. Step 2: Convert to fraction form
    1,615.48/2,227.58 = 1,117.25/x
  3. Step 3: Cross multiply
    1,615.48x = 2,227.58 × 1,117.25
  4. Step 4: Simplify right side
    1,615.48x = 2,488,772.12
  5. Step 5: Solve for x
    x = 2,488,772.12/1,615.48
  6. Step 6: Final answer
    x = 1,540.58

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1.5x scale

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.