Home / 2,911.60-4,017.72-1,716.56

Finding the Fourth Proportional to 2,911.60, 4,017.72 and 1,716.56

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Solution

The fourth proportional to 2,911.60, 4,017.72 and 1,716.56 is: 2,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.60 : 4,017.72 = 1,716.56 : x
  2. Step 2: Convert to fraction form
    2,911.60/4,017.72 = 1,716.56/x
  3. Step 3: Cross multiply
    2,911.60x = 4,017.72 × 1,716.56
  4. Step 4: Simplify right side
    2,911.60x = 6,896,657.44
  5. Step 5: Solve for x
    x = 6,896,657.44/2,911.60
  6. Step 6: Final answer
    x = 2,368.68

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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.