Home / 2,858.07-3,941.28-2,151.60

Finding the Fourth Proportional to 2,858.07, 3,941.28 and 2,151.60

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Solution

The fourth proportional to 2,858.07, 3,941.28 and 2,151.60 is: 2,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.07 : 3,941.28 = 2,151.60 : x
  2. Step 2: Convert to fraction form
    2,858.07/3,941.28 = 2,151.60/x
  3. Step 3: Cross multiply
    2,858.07x = 3,941.28 × 2,151.60
  4. Step 4: Simplify right side
    2,858.07x = 8,480,058.05
  5. Step 5: Solve for x
    x = 8,480,058.05/2,858.07
  6. Step 6: Final answer
    x = 2,967.06

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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.