Home / 2,015.40-3,004.05-1,916.70

Finding the Fourth Proportional to 2,015.40, 3,004.05 and 1,916.70

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Solution

The fourth proportional to 2,015.40, 3,004.05 and 1,916.70 is: 2,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.40 : 3,004.05 = 1,916.70 : x
  2. Step 2: Convert to fraction form
    2,015.40/3,004.05 = 1,916.70/x
  3. Step 3: Cross multiply
    2,015.40x = 3,004.05 × 1,916.70
  4. Step 4: Simplify right side
    2,015.40x = 5,757,863.14
  5. Step 5: Solve for x
    x = 5,757,863.14/2,015.40
  6. Step 6: Final answer
    x = 2,856.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.