Home / 7,615.33-11,421.59-3,454.34

Finding the Fourth Proportional to 7,615.33, 11,421.59 and 3,454.34

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Solution

The fourth proportional to 7,615.33, 11,421.59 and 3,454.34 is: 5,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.33 : 11,421.59 = 3,454.34 : x
  2. Step 2: Convert to fraction form
    7,615.33/11,421.59 = 3,454.34/x
  3. Step 3: Cross multiply
    7,615.33x = 11,421.59 × 3,454.34
  4. Step 4: Simplify right side
    7,615.33x = 39,453,980.82
  5. Step 5: Solve for x
    x = 39,453,980.82/7,615.33
  6. Step 6: Final answer
    x = 5,180.86

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1.5x scale

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.