Home / 2,083.84-2,875.60-1,139.64

Finding the Fourth Proportional to 2,083.84, 2,875.60 and 1,139.64

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Solution

The fourth proportional to 2,083.84, 2,875.60 and 1,139.64 is: 1,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.84 : 2,875.60 = 1,139.64 : x
  2. Step 2: Convert to fraction form
    2,083.84/2,875.60 = 1,139.64/x
  3. Step 3: Cross multiply
    2,083.84x = 2,875.60 × 1,139.64
  4. Step 4: Simplify right side
    2,083.84x = 3,277,148.78
  5. Step 5: Solve for x
    x = 3,277,148.78/2,083.84
  6. Step 6: Final answer
    x = 1,572.65

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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.