Home / 5,680.40-8,528.56-2,908.99

Finding the Fourth Proportional to 5,680.40, 8,528.56 and 2,908.99

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Solution

The fourth proportional to 5,680.40, 8,528.56 and 2,908.99 is: 4,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.40 : 8,528.56 = 2,908.99 : x
  2. Step 2: Convert to fraction form
    5,680.40/8,528.56 = 2,908.99/x
  3. Step 3: Cross multiply
    5,680.40x = 8,528.56 × 2,908.99
  4. Step 4: Simplify right side
    5,680.40x = 24,809,495.75
  5. Step 5: Solve for x
    x = 24,809,495.75/5,680.40
  6. Step 6: Final answer
    x = 4,367.56

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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.