Home / 1,941.71-2,907.99-1,688.30

Finding the Fourth Proportional to 1,941.71, 2,907.99 and 1,688.30

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Solution

The fourth proportional to 1,941.71, 2,907.99 and 1,688.30 is: 2,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.71 : 2,907.99 = 1,688.30 : x
  2. Step 2: Convert to fraction form
    1,941.71/2,907.99 = 1,688.30/x
  3. Step 3: Cross multiply
    1,941.71x = 2,907.99 × 1,688.30
  4. Step 4: Simplify right side
    1,941.71x = 4,909,544.98
  5. Step 5: Solve for x
    x = 4,909,544.98/1,941.71
  6. Step 6: Final answer
    x = 2,528.47

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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.