Home / 3,411.30-5,117.26-1,219.50

Finding the Fourth Proportional to 3,411.30, 5,117.26 and 1,219.50

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Solution

The fourth proportional to 3,411.30, 5,117.26 and 1,219.50 is: 1,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.30 : 5,117.26 = 1,219.50 : x
  2. Step 2: Convert to fraction form
    3,411.30/5,117.26 = 1,219.50/x
  3. Step 3: Cross multiply
    3,411.30x = 5,117.26 × 1,219.50
  4. Step 4: Simplify right side
    3,411.30x = 6,240,498.57
  5. Step 5: Solve for x
    x = 6,240,498.57/3,411.30
  6. Step 6: Final answer
    x = 1,829.36

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Double scale
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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.