Home / 7,484.20-11,220.90-4,888.60

Finding the Fourth Proportional to 7,484.20, 11,220.90 and 4,888.60

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Solution

The fourth proportional to 7,484.20, 11,220.90 and 4,888.60 is: 7,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.20 : 11,220.90 = 4,888.60 : x
  2. Step 2: Convert to fraction form
    7,484.20/11,220.90 = 4,888.60/x
  3. Step 3: Cross multiply
    7,484.20x = 11,220.90 × 4,888.60
  4. Step 4: Simplify right side
    7,484.20x = 54,854,491.74
  5. Step 5: Solve for x
    x = 54,854,491.74/7,484.20
  6. Step 6: Final answer
    x = 7,329.37

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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.