Home / 3,143.93-4,339.41-1,817.45

Finding the Fourth Proportional to 3,143.93, 4,339.41 and 1,817.45

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Solution

The fourth proportional to 3,143.93, 4,339.41 and 1,817.45 is: 2,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.93 : 4,339.41 = 1,817.45 : x
  2. Step 2: Convert to fraction form
    3,143.93/4,339.41 = 1,817.45/x
  3. Step 3: Cross multiply
    3,143.93x = 4,339.41 × 1,817.45
  4. Step 4: Simplify right side
    3,143.93x = 7,886,639.01
  5. Step 5: Solve for x
    x = 7,886,639.01/3,143.93
  6. Step 6: Final answer
    x = 2,508.53

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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.