Home / 2,133.36-3,197.88-1,438.32

Finding the Fourth Proportional to 2,133.36, 3,197.88 and 1,438.32

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Solution

The fourth proportional to 2,133.36, 3,197.88 and 1,438.32 is: 2,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.36 : 3,197.88 = 1,438.32 : x
  2. Step 2: Convert to fraction form
    2,133.36/3,197.88 = 1,438.32/x
  3. Step 3: Cross multiply
    2,133.36x = 3,197.88 × 1,438.32
  4. Step 4: Simplify right side
    2,133.36x = 4,599,574.76
  5. Step 5: Solve for x
    x = 4,599,574.76/2,133.36
  6. Step 6: Final answer
    x = 2,156.02

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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.