Home / 2,838.15-3,916.71-1,718.87

Finding the Fourth Proportional to 2,838.15, 3,916.71 and 1,718.87

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Solution

The fourth proportional to 2,838.15, 3,916.71 and 1,718.87 is: 2,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.15 : 3,916.71 = 1,718.87 : x
  2. Step 2: Convert to fraction form
    2,838.15/3,916.71 = 1,718.87/x
  3. Step 3: Cross multiply
    2,838.15x = 3,916.71 × 1,718.87
  4. Step 4: Simplify right side
    2,838.15x = 6,732,295.73
  5. Step 5: Solve for x
    x = 6,732,295.73/2,838.15
  6. Step 6: Final answer
    x = 2,372.07

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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.