Home / 3,172.95-4,376.45-2,214.26

Finding the Fourth Proportional to 3,172.95, 4,376.45 and 2,214.26

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Solution

The fourth proportional to 3,172.95, 4,376.45 and 2,214.26 is: 3,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.95 : 4,376.45 = 2,214.26 : x
  2. Step 2: Convert to fraction form
    3,172.95/4,376.45 = 2,214.26/x
  3. Step 3: Cross multiply
    3,172.95x = 4,376.45 × 2,214.26
  4. Step 4: Simplify right side
    3,172.95x = 9,690,602.77
  5. Step 5: Solve for x
    x = 9,690,602.77/3,172.95
  6. Step 6: Final answer
    x = 3,054.13

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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.