Home / 1,955.17-2,698.62-1,639.95

Finding the Fourth Proportional to 1,955.17, 2,698.62 and 1,639.95

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Solution

The fourth proportional to 1,955.17, 2,698.62 and 1,639.95 is: 2,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.17 : 2,698.62 = 1,639.95 : x
  2. Step 2: Convert to fraction form
    1,955.17/2,698.62 = 1,639.95/x
  3. Step 3: Cross multiply
    1,955.17x = 2,698.62 × 1,639.95
  4. Step 4: Simplify right side
    1,955.17x = 4,425,585.60
  5. Step 5: Solve for x
    x = 4,425,585.60/1,955.17
  6. Step 6: Final answer
    x = 2,263.53

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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.