Home / 2,117.98-2,922.75-1,173.81

Finding the Fourth Proportional to 2,117.98, 2,922.75 and 1,173.81

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Solution

The fourth proportional to 2,117.98, 2,922.75 and 1,173.81 is: 1,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.98 : 2,922.75 = 1,173.81 : x
  2. Step 2: Convert to fraction form
    2,117.98/2,922.75 = 1,173.81/x
  3. Step 3: Cross multiply
    2,117.98x = 2,922.75 × 1,173.81
  4. Step 4: Simplify right side
    2,117.98x = 3,430,753.18
  5. Step 5: Solve for x
    x = 3,430,753.18/2,117.98
  6. Step 6: Final answer
    x = 1,619.82

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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.