Home / 2,077.28-3,117.14-1,916.92

Finding the Fourth Proportional to 2,077.28, 3,117.14 and 1,916.92

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Solution

The fourth proportional to 2,077.28, 3,117.14 and 1,916.92 is: 2,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.28 : 3,117.14 = 1,916.92 : x
  2. Step 2: Convert to fraction form
    2,077.28/3,117.14 = 1,916.92/x
  3. Step 3: Cross multiply
    2,077.28x = 3,117.14 × 1,916.92
  4. Step 4: Simplify right side
    2,077.28x = 5,975,308.01
  5. Step 5: Solve for x
    x = 5,975,308.01/2,077.28
  6. Step 6: Final answer
    x = 2,876.51

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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.