Home / 3,511.04-4,845.21-1,917.69

Finding the Fourth Proportional to 3,511.04, 4,845.21 and 1,917.69

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Solution

The fourth proportional to 3,511.04, 4,845.21 and 1,917.69 is: 2,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.04 : 4,845.21 = 1,917.69 : x
  2. Step 2: Convert to fraction form
    3,511.04/4,845.21 = 1,917.69/x
  3. Step 3: Cross multiply
    3,511.04x = 4,845.21 × 1,917.69
  4. Step 4: Simplify right side
    3,511.04x = 9,291,616.57
  5. Step 5: Solve for x
    x = 9,291,616.57/3,511.04
  6. Step 6: Final answer
    x = 2,646.40

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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.