Home / 5,513.48-7,609.40-3,418.28

Finding the Fourth Proportional to 5,513.48, 7,609.40 and 3,418.28

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Solution

The fourth proportional to 5,513.48, 7,609.40 and 3,418.28 is: 4,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.48 : 7,609.40 = 3,418.28 : x
  2. Step 2: Convert to fraction form
    5,513.48/7,609.40 = 3,418.28/x
  3. Step 3: Cross multiply
    5,513.48x = 7,609.40 × 3,418.28
  4. Step 4: Simplify right side
    5,513.48x = 26,011,059.83
  5. Step 5: Solve for x
    x = 26,011,059.83/5,513.48
  6. Step 6: Final answer
    x = 4,717.72

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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.