Home / 5,120.04-7,682.47-2,653.52

Finding the Fourth Proportional to 5,120.04, 7,682.47 and 2,653.52

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Solution

The fourth proportional to 5,120.04, 7,682.47 and 2,653.52 is: 3,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.04 : 7,682.47 = 2,653.52 : x
  2. Step 2: Convert to fraction form
    5,120.04/7,682.47 = 2,653.52/x
  3. Step 3: Cross multiply
    5,120.04x = 7,682.47 × 2,653.52
  4. Step 4: Simplify right side
    5,120.04x = 20,385,600.37
  5. Step 5: Solve for x
    x = 20,385,600.37/5,120.04
  6. Step 6: Final answer
    x = 3,981.53

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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.