Home / 7,397.72-11,089.20-3,495.20

Finding the Fourth Proportional to 7,397.72, 11,089.20 and 3,495.20

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Solution

The fourth proportional to 7,397.72, 11,089.20 and 3,495.20 is: 5,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.72 : 11,089.20 = 3,495.20 : x
  2. Step 2: Convert to fraction form
    7,397.72/11,089.20 = 3,495.20/x
  3. Step 3: Cross multiply
    7,397.72x = 11,089.20 × 3,495.20
  4. Step 4: Simplify right side
    7,397.72x = 38,758,971.84
  5. Step 5: Solve for x
    x = 38,758,971.84/7,397.72
  6. Step 6: Final answer
    x = 5,239.31

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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.