Home / 1,947.60-2,920.32-1,717.02

Finding the Fourth Proportional to 1,947.60, 2,920.32 and 1,717.02

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Solution

The fourth proportional to 1,947.60, 2,920.32 and 1,717.02 is: 2,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.60 : 2,920.32 = 1,717.02 : x
  2. Step 2: Convert to fraction form
    1,947.60/2,920.32 = 1,717.02/x
  3. Step 3: Cross multiply
    1,947.60x = 2,920.32 × 1,717.02
  4. Step 4: Simplify right side
    1,947.60x = 5,014,247.85
  5. Step 5: Solve for x
    x = 5,014,247.85/1,947.60
  6. Step 6: Final answer
    x = 2,574.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.