Home / 2,970.72-4,095.88-2,173.41

Finding the Fourth Proportional to 2,970.72, 4,095.88 and 2,173.41

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Solution

The fourth proportional to 2,970.72, 4,095.88 and 2,173.41 is: 2,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.72 : 4,095.88 = 2,173.41 : x
  2. Step 2: Convert to fraction form
    2,970.72/4,095.88 = 2,173.41/x
  3. Step 3: Cross multiply
    2,970.72x = 4,095.88 × 2,173.41
  4. Step 4: Simplify right side
    2,970.72x = 8,902,021.12
  5. Step 5: Solve for x
    x = 8,902,021.12/2,970.72
  6. Step 6: Final answer
    x = 2,996.59

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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.