Home / 7,517.90-11,277.51-1,971.22

Finding the Fourth Proportional to 7,517.90, 11,277.51 and 1,971.22

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Solution

The fourth proportional to 7,517.90, 11,277.51 and 1,971.22 is: 2,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.90 : 11,277.51 = 1,971.22 : x
  2. Step 2: Convert to fraction form
    7,517.90/11,277.51 = 1,971.22/x
  3. Step 3: Cross multiply
    7,517.90x = 11,277.51 × 1,971.22
  4. Step 4: Simplify right side
    7,517.90x = 22,230,453.26
  5. Step 5: Solve for x
    x = 22,230,453.26/7,517.90
  6. Step 6: Final answer
    x = 2,957.00

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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.