Home / 2,117.81-2,922.33-1,173.36

Finding the Fourth Proportional to 2,117.81, 2,922.33 and 1,173.36

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Solution

The fourth proportional to 2,117.81, 2,922.33 and 1,173.36 is: 1,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.81 : 2,922.33 = 1,173.36 : x
  2. Step 2: Convert to fraction form
    2,117.81/2,922.33 = 1,173.36/x
  3. Step 3: Cross multiply
    2,117.81x = 2,922.33 × 1,173.36
  4. Step 4: Simplify right side
    2,117.81x = 3,428,945.50
  5. Step 5: Solve for x
    x = 3,428,945.50/2,117.81
  6. Step 6: Final answer
    x = 1,619.10

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1.5x scale

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.