Home / 3,155.51-4,354.39-1,895.82

Finding the Fourth Proportional to 3,155.51, 4,354.39 and 1,895.82

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Solution

The fourth proportional to 3,155.51, 4,354.39 and 1,895.82 is: 2,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.51 : 4,354.39 = 1,895.82 : x
  2. Step 2: Convert to fraction form
    3,155.51/4,354.39 = 1,895.82/x
  3. Step 3: Cross multiply
    3,155.51x = 4,354.39 × 1,895.82
  4. Step 4: Simplify right side
    3,155.51x = 8,255,117.88
  5. Step 5: Solve for x
    x = 8,255,117.88/3,155.51
  6. Step 6: Final answer
    x = 2,616.10

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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.