Home / 1,938.60-2,892.51-1,800.96

Finding the Fourth Proportional to 1,938.60, 2,892.51 and 1,800.96

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Solution

The fourth proportional to 1,938.60, 2,892.51 and 1,800.96 is: 2,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.60 : 2,892.51 = 1,800.96 : x
  2. Step 2: Convert to fraction form
    1,938.60/2,892.51 = 1,800.96/x
  3. Step 3: Cross multiply
    1,938.60x = 2,892.51 × 1,800.96
  4. Step 4: Simplify right side
    1,938.60x = 5,209,294.81
  5. Step 5: Solve for x
    x = 5,209,294.81/1,938.60
  6. Step 6: Final answer
    x = 2,687.14

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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.