Home / 2,812.56-4,216.14-1,888.38

Finding the Fourth Proportional to 2,812.56, 4,216.14 and 1,888.38

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Solution

The fourth proportional to 2,812.56, 4,216.14 and 1,888.38 is: 2,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.56 : 4,216.14 = 1,888.38 : x
  2. Step 2: Convert to fraction form
    2,812.56/4,216.14 = 1,888.38/x
  3. Step 3: Cross multiply
    2,812.56x = 4,216.14 × 1,888.38
  4. Step 4: Simplify right side
    2,812.56x = 7,961,643.93
  5. Step 5: Solve for x
    x = 7,961,643.93/2,812.56
  6. Step 6: Final answer
    x = 2,830.75

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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.