Home / 2,117.94-2,922.70-1,173.69

Finding the Fourth Proportional to 2,117.94, 2,922.70 and 1,173.69

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Solution

The fourth proportional to 2,117.94, 2,922.70 and 1,173.69 is: 1,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.94 : 2,922.70 = 1,173.69 : x
  2. Step 2: Convert to fraction form
    2,117.94/2,922.70 = 1,173.69/x
  3. Step 3: Cross multiply
    2,117.94x = 2,922.70 × 1,173.69
  4. Step 4: Simplify right side
    2,117.94x = 3,430,343.76
  5. Step 5: Solve for x
    x = 3,430,343.76/2,117.94
  6. Step 6: Final answer
    x = 1,619.66

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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.