Home / 1,985-2,739.91-1,462.55

Finding the Fourth Proportional to 1,985, 2,739.91 and 1,462.55

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Solution

The fourth proportional to 1,985, 2,739.91 and 1,462.55 is: 2,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985 : 2,739.91 = 1,462.55 : x
  2. Step 2: Convert to fraction form
    1,985/2,739.91 = 1,462.55/x
  3. Step 3: Cross multiply
    1,985x = 2,739.91 × 1,462.55
  4. Step 4: Simplify right side
    1,985x = 4,007,255.37
  5. Step 5: Solve for x
    x = 4,007,255.37/1,985
  6. Step 6: Final answer
    x = 2,018.77

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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.