Home / 2,548.20-3,516.23-1,428.99

Finding the Fourth Proportional to 2,548.20, 3,516.23 and 1,428.99

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Solution

The fourth proportional to 2,548.20, 3,516.23 and 1,428.99 is: 1,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.20 : 3,516.23 = 1,428.99 : x
  2. Step 2: Convert to fraction form
    2,548.20/3,516.23 = 1,428.99/x
  3. Step 3: Cross multiply
    2,548.20x = 3,516.23 × 1,428.99
  4. Step 4: Simplify right side
    2,548.20x = 5,024,650.36
  5. Step 5: Solve for x
    x = 5,024,650.36/2,548.20
  6. Step 6: Final answer
    x = 1,971.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.