Home / 7,501.90-11,253.12-2,821.48

Finding the Fourth Proportional to 7,501.90, 11,253.12 and 2,821.48

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Solution

The fourth proportional to 7,501.90, 11,253.12 and 2,821.48 is: 4,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.90 : 11,253.12 = 2,821.48 : x
  2. Step 2: Convert to fraction form
    7,501.90/11,253.12 = 2,821.48/x
  3. Step 3: Cross multiply
    7,501.90x = 11,253.12 × 2,821.48
  4. Step 4: Simplify right side
    7,501.90x = 31,750,453.02
  5. Step 5: Solve for x
    x = 31,750,453.02/7,501.90
  6. Step 6: Final answer
    x = 4,232.32

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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.