Home / 4,118.95-6,172.31-2,165.23

Finding the Fourth Proportional to 4,118.95, 6,172.31 and 2,165.23

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Solution

The fourth proportional to 4,118.95, 6,172.31 and 2,165.23 is: 3,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.95 : 6,172.31 = 2,165.23 : x
  2. Step 2: Convert to fraction form
    4,118.95/6,172.31 = 2,165.23/x
  3. Step 3: Cross multiply
    4,118.95x = 6,172.31 × 2,165.23
  4. Step 4: Simplify right side
    4,118.95x = 13,364,460.76
  5. Step 5: Solve for x
    x = 13,364,460.76/4,118.95
  6. Step 6: Final answer
    x = 3,244.63

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Half scale
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Double scale
Find fourth proportional to 4,119.95, 6,173.81 and 2,166.23
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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.