Home / 2,623.20-3,615.60-2,124

Finding the Fourth Proportional to 2,623.20, 3,615.60 and 2,124

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Solution

The fourth proportional to 2,623.20, 3,615.60 and 2,124 is: 2,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.20 : 3,615.60 = 2,124 : x
  2. Step 2: Convert to fraction form
    2,623.20/3,615.60 = 2,124/x
  3. Step 3: Cross multiply
    2,623.20x = 3,615.60 × 2,124
  4. Step 4: Simplify right side
    2,623.20x = 7,679,534.40
  5. Step 5: Solve for x
    x = 7,679,534.40/2,623.20
  6. Step 6: Final answer
    x = 2,927.54

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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.