Home / 2,152.44-2,970.30-1,208.15

Finding the Fourth Proportional to 2,152.44, 2,970.30 and 1,208.15

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Solution

The fourth proportional to 2,152.44, 2,970.30 and 1,208.15 is: 1,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.44 : 2,970.30 = 1,208.15 : x
  2. Step 2: Convert to fraction form
    2,152.44/2,970.30 = 1,208.15/x
  3. Step 3: Cross multiply
    2,152.44x = 2,970.30 × 1,208.15
  4. Step 4: Simplify right side
    2,152.44x = 3,588,568.76
  5. Step 5: Solve for x
    x = 3,588,568.76/2,152.44
  6. Step 6: Final answer
    x = 1,667.21

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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.