Home / 1,985.56-2,730.18-1,774.42

Finding the Fourth Proportional to 1,985.56, 2,730.18 and 1,774.42

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Solution

The fourth proportional to 1,985.56, 2,730.18 and 1,774.42 is: 2,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.56 : 2,730.18 = 1,774.42 : x
  2. Step 2: Convert to fraction form
    1,985.56/2,730.18 = 1,774.42/x
  3. Step 3: Cross multiply
    1,985.56x = 2,730.18 × 1,774.42
  4. Step 4: Simplify right side
    1,985.56x = 4,844,486.00
  5. Step 5: Solve for x
    x = 4,844,486.00/1,985.56
  6. Step 6: Final answer
    x = 2,439.86

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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.