Home / 2,225.95-3,319.31-1,919.77

Finding the Fourth Proportional to 2,225.95, 3,319.31 and 1,919.77

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Solution

The fourth proportional to 2,225.95, 3,319.31 and 1,919.77 is: 2,862.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.95 : 3,319.31 = 1,919.77 : x
  2. Step 2: Convert to fraction form
    2,225.95/3,319.31 = 1,919.77/x
  3. Step 3: Cross multiply
    2,225.95x = 3,319.31 × 1,919.77
  4. Step 4: Simplify right side
    2,225.95x = 6,372,308.26
  5. Step 5: Solve for x
    x = 6,372,308.26/2,225.95
  6. Step 6: Final answer
    x = 2,862.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.