Home / 5,216.20-7,802.70-4,438.60

Finding the Fourth Proportional to 5,216.20, 7,802.70 and 4,438.60

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Solution

The fourth proportional to 5,216.20, 7,802.70 and 4,438.60 is: 6,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.20 : 7,802.70 = 4,438.60 : x
  2. Step 2: Convert to fraction form
    5,216.20/7,802.70 = 4,438.60/x
  3. Step 3: Cross multiply
    5,216.20x = 7,802.70 × 4,438.60
  4. Step 4: Simplify right side
    5,216.20x = 34,633,064.22
  5. Step 5: Solve for x
    x = 34,633,064.22/5,216.20
  6. Step 6: Final answer
    x = 6,639.52

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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.