Home / 1,968.90-2,718.84-1,875.54

Finding the Fourth Proportional to 1,968.90, 2,718.84 and 1,875.54

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Solution

The fourth proportional to 1,968.90, 2,718.84 and 1,875.54 is: 2,589.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.90 : 2,718.84 = 1,875.54 : x
  2. Step 2: Convert to fraction form
    1,968.90/2,718.84 = 1,875.54/x
  3. Step 3: Cross multiply
    1,968.90x = 2,718.84 × 1,875.54
  4. Step 4: Simplify right side
    1,968.90x = 5,099,293.17
  5. Step 5: Solve for x
    x = 5,099,293.17/1,968.90
  6. Step 6: Final answer
    x = 2,589.92

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1.5x scale

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.