Home / 7,491.34-11,242.82-2,815.60

Finding the Fourth Proportional to 7,491.34, 11,242.82 and 2,815.60

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Solution

The fourth proportional to 7,491.34, 11,242.82 and 2,815.60 is: 4,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.34 : 11,242.82 = 2,815.60 : x
  2. Step 2: Convert to fraction form
    7,491.34/11,242.82 = 2,815.60/x
  3. Step 3: Cross multiply
    7,491.34x = 11,242.82 × 2,815.60
  4. Step 4: Simplify right side
    7,491.34x = 31,655,283.99
  5. Step 5: Solve for x
    x = 31,655,283.99/7,491.34
  6. Step 6: Final answer
    x = 4,225.58

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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.