Home / 3,155.36-4,354.40-1,829.32

Finding the Fourth Proportional to 3,155.36, 4,354.40 and 1,829.32

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Solution

The fourth proportional to 3,155.36, 4,354.40 and 1,829.32 is: 2,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.36 : 4,354.40 = 1,829.32 : x
  2. Step 2: Convert to fraction form
    3,155.36/4,354.40 = 1,829.32/x
  3. Step 3: Cross multiply
    3,155.36x = 4,354.40 × 1,829.32
  4. Step 4: Simplify right side
    3,155.36x = 7,965,591.01
  5. Step 5: Solve for x
    x = 7,965,591.01/3,155.36
  6. Step 6: Final answer
    x = 2,524.46

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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.