Home / 2,780.23-3,835.28-1,884.01

Finding the Fourth Proportional to 2,780.23, 3,835.28 and 1,884.01

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Solution

The fourth proportional to 2,780.23, 3,835.28 and 1,884.01 is: 2,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.23 : 3,835.28 = 1,884.01 : x
  2. Step 2: Convert to fraction form
    2,780.23/3,835.28 = 1,884.01/x
  3. Step 3: Cross multiply
    2,780.23x = 3,835.28 × 1,884.01
  4. Step 4: Simplify right side
    2,780.23x = 7,225,705.87
  5. Step 5: Solve for x
    x = 7,225,705.87/2,780.23
  6. Step 6: Final answer
    x = 2,598.96

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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.