Home / 5,151.87-7,727.72-4,750.56

Finding the Fourth Proportional to 5,151.87, 7,727.72 and 4,750.56

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Solution

The fourth proportional to 5,151.87, 7,727.72 and 4,750.56 is: 7,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.87 : 7,727.72 = 4,750.56 : x
  2. Step 2: Convert to fraction form
    5,151.87/7,727.72 = 4,750.56/x
  3. Step 3: Cross multiply
    5,151.87x = 7,727.72 × 4,750.56
  4. Step 4: Simplify right side
    5,151.87x = 36,710,973.77
  5. Step 5: Solve for x
    x = 36,710,973.77/5,151.87
  6. Step 6: Final answer
    x = 7,125.76

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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.