Home / 5,628.90-8,445.06-3,988.62

Finding the Fourth Proportional to 5,628.90, 8,445.06 and 3,988.62

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Solution

The fourth proportional to 5,628.90, 8,445.06 and 3,988.62 is: 5,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.90 : 8,445.06 = 3,988.62 : x
  2. Step 2: Convert to fraction form
    5,628.90/8,445.06 = 3,988.62/x
  3. Step 3: Cross multiply
    5,628.90x = 8,445.06 × 3,988.62
  4. Step 4: Simplify right side
    5,628.90x = 33,684,135.22
  5. Step 5: Solve for x
    x = 33,684,135.22/5,628.90
  6. Step 6: Final answer
    x = 5,984.14

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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.