Home / 5,151.56-7,727.30-2,075.72

Finding the Fourth Proportional to 5,151.56, 7,727.30 and 2,075.72

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Solution

The fourth proportional to 5,151.56, 7,727.30 and 2,075.72 is: 3,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.56 : 7,727.30 = 2,075.72 : x
  2. Step 2: Convert to fraction form
    5,151.56/7,727.30 = 2,075.72/x
  3. Step 3: Cross multiply
    5,151.56x = 7,727.30 × 2,075.72
  4. Step 4: Simplify right side
    5,151.56x = 16,039,711.16
  5. Step 5: Solve for x
    x = 16,039,711.16/5,151.56
  6. Step 6: Final answer
    x = 3,113.56

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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.