Home / 3,615.14-4,988.93-2,123.07

Finding the Fourth Proportional to 3,615.14, 4,988.93 and 2,123.07

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Solution

The fourth proportional to 3,615.14, 4,988.93 and 2,123.07 is: 2,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.14 : 4,988.93 = 2,123.07 : x
  2. Step 2: Convert to fraction form
    3,615.14/4,988.93 = 2,123.07/x
  3. Step 3: Cross multiply
    3,615.14x = 4,988.93 × 2,123.07
  4. Step 4: Simplify right side
    3,615.14x = 10,591,837.00
  5. Step 5: Solve for x
    x = 10,591,837.00/3,615.14
  6. Step 6: Final answer
    x = 2,929.86

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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.