Home / 7,722.90-11,575.40-3,554.16

Finding the Fourth Proportional to 7,722.90, 11,575.40 and 3,554.16

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Solution

The fourth proportional to 7,722.90, 11,575.40 and 3,554.16 is: 5,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.90 : 11,575.40 = 3,554.16 : x
  2. Step 2: Convert to fraction form
    7,722.90/11,575.40 = 3,554.16/x
  3. Step 3: Cross multiply
    7,722.90x = 11,575.40 × 3,554.16
  4. Step 4: Simplify right side
    7,722.90x = 41,140,823.66
  5. Step 5: Solve for x
    x = 41,140,823.66/7,722.90
  6. Step 6: Final answer
    x = 5,327.12

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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.