Home / 1,576.55-2,176.11-913.56

Finding the Fourth Proportional to 1,576.55, 2,176.11 and 913.56

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Solution

The fourth proportional to 1,576.55, 2,176.11 and 913.56 is: 1,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.55 : 2,176.11 = 913.56 : x
  2. Step 2: Convert to fraction form
    1,576.55/2,176.11 = 913.56/x
  3. Step 3: Cross multiply
    1,576.55x = 2,176.11 × 913.56
  4. Step 4: Simplify right side
    1,576.55x = 1,988,007.05
  5. Step 5: Solve for x
    x = 1,988,007.05/1,576.55
  6. Step 6: Final answer
    x = 1,260.99

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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.