Home / 1,953.60-2,916.28-1,661.92

Finding the Fourth Proportional to 1,953.60, 2,916.28 and 1,661.92

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Solution

The fourth proportional to 1,953.60, 2,916.28 and 1,661.92 is: 2,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.60 : 2,916.28 = 1,661.92 : x
  2. Step 2: Convert to fraction form
    1,953.60/2,916.28 = 1,661.92/x
  3. Step 3: Cross multiply
    1,953.60x = 2,916.28 × 1,661.92
  4. Step 4: Simplify right side
    1,953.60x = 4,846,624.06
  5. Step 5: Solve for x
    x = 4,846,624.06/1,953.60
  6. Step 6: Final answer
    x = 2,480.87

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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.