Home / 1,916.56-2,645.04-1,253.68

Finding the Fourth Proportional to 1,916.56, 2,645.04 and 1,253.68

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Solution

The fourth proportional to 1,916.56, 2,645.04 and 1,253.68 is: 1,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.56 : 2,645.04 = 1,253.68 : x
  2. Step 2: Convert to fraction form
    1,916.56/2,645.04 = 1,253.68/x
  3. Step 3: Cross multiply
    1,916.56x = 2,645.04 × 1,253.68
  4. Step 4: Simplify right side
    1,916.56x = 3,316,033.75
  5. Step 5: Solve for x
    x = 3,316,033.75/1,916.56
  6. Step 6: Final answer
    x = 1,730.20

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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.