Home / 2,985.33-4,115.37-1,865.76

Finding the Fourth Proportional to 2,985.33, 4,115.37 and 1,865.76

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Solution

The fourth proportional to 2,985.33, 4,115.37 and 1,865.76 is: 2,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.33 : 4,115.37 = 1,865.76 : x
  2. Step 2: Convert to fraction form
    2,985.33/4,115.37 = 1,865.76/x
  3. Step 3: Cross multiply
    2,985.33x = 4,115.37 × 1,865.76
  4. Step 4: Simplify right side
    2,985.33x = 7,678,292.73
  5. Step 5: Solve for x
    x = 7,678,292.73/2,985.33
  6. Step 6: Final answer
    x = 2,572.01

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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.