Home / 2,159.28-3,213.63-2,146.32

Finding the Fourth Proportional to 2,159.28, 3,213.63 and 2,146.32

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Solution

The fourth proportional to 2,159.28, 3,213.63 and 2,146.32 is: 3,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.28 : 3,213.63 = 2,146.32 : x
  2. Step 2: Convert to fraction form
    2,159.28/3,213.63 = 2,146.32/x
  3. Step 3: Cross multiply
    2,159.28x = 3,213.63 × 2,146.32
  4. Step 4: Simplify right side
    2,159.28x = 6,897,478.34
  5. Step 5: Solve for x
    x = 6,897,478.34/2,159.28
  6. Step 6: Final answer
    x = 3,194.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.