Home / 2,860.75-3,948.38-1,682.47

Finding the Fourth Proportional to 2,860.75, 3,948.38 and 1,682.47

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Solution

The fourth proportional to 2,860.75, 3,948.38 and 1,682.47 is: 2,322.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.75 : 3,948.38 = 1,682.47 : x
  2. Step 2: Convert to fraction form
    2,860.75/3,948.38 = 1,682.47/x
  3. Step 3: Cross multiply
    2,860.75x = 3,948.38 × 1,682.47
  4. Step 4: Simplify right side
    2,860.75x = 6,643,030.90
  5. Step 5: Solve for x
    x = 6,643,030.90/2,860.75
  6. Step 6: Final answer
    x = 2,322.13

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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.