Home / 2,117.47-2,922.28-1,173.35

Finding the Fourth Proportional to 2,117.47, 2,922.28 and 1,173.35

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Solution

The fourth proportional to 2,117.47, 2,922.28 and 1,173.35 is: 1,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.47 : 2,922.28 = 1,173.35 : x
  2. Step 2: Convert to fraction form
    2,117.47/2,922.28 = 1,173.35/x
  3. Step 3: Cross multiply
    2,117.47x = 2,922.28 × 1,173.35
  4. Step 4: Simplify right side
    2,117.47x = 3,428,861.61
  5. Step 5: Solve for x
    x = 3,428,861.61/2,117.47
  6. Step 6: Final answer
    x = 1,619.32

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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.