Home / 1,916.79-2,877.61-1,630.05

Finding the Fourth Proportional to 1,916.79, 2,877.61 and 1,630.05

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Solution

The fourth proportional to 1,916.79, 2,877.61 and 1,630.05 is: 2,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.79 : 2,877.61 = 1,630.05 : x
  2. Step 2: Convert to fraction form
    1,916.79/2,877.61 = 1,630.05/x
  3. Step 3: Cross multiply
    1,916.79x = 2,877.61 × 1,630.05
  4. Step 4: Simplify right side
    1,916.79x = 4,690,648.18
  5. Step 5: Solve for x
    x = 4,690,648.18/1,916.79
  6. Step 6: Final answer
    x = 2,447.14

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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.