Home / 3,455.26-5,181.81-1,263.49

Finding the Fourth Proportional to 3,455.26, 5,181.81 and 1,263.49

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Solution

The fourth proportional to 3,455.26, 5,181.81 and 1,263.49 is: 1,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.26 : 5,181.81 = 1,263.49 : x
  2. Step 2: Convert to fraction form
    3,455.26/5,181.81 = 1,263.49/x
  3. Step 3: Cross multiply
    3,455.26x = 5,181.81 × 1,263.49
  4. Step 4: Simplify right side
    3,455.26x = 6,547,165.12
  5. Step 5: Solve for x
    x = 6,547,165.12/3,455.26
  6. Step 6: Final answer
    x = 1,894.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.