Home / 2,699.45-4,047.80-1,237.35

Finding the Fourth Proportional to 2,699.45, 4,047.80 and 1,237.35

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Solution

The fourth proportional to 2,699.45, 4,047.80 and 1,237.35 is: 1,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.45 : 4,047.80 = 1,237.35 : x
  2. Step 2: Convert to fraction form
    2,699.45/4,047.80 = 1,237.35/x
  3. Step 3: Cross multiply
    2,699.45x = 4,047.80 × 1,237.35
  4. Step 4: Simplify right side
    2,699.45x = 5,008,518.90
  5. Step 5: Solve for x
    x = 5,008,518.90/2,699.45
  6. Step 6: Final answer
    x = 1,855.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.