Home / 2,913.10-4,021.44-1,865.76

Finding the Fourth Proportional to 2,913.10, 4,021.44 and 1,865.76

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Solution

The fourth proportional to 2,913.10, 4,021.44 and 1,865.76 is: 2,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.10 : 4,021.44 = 1,865.76 : x
  2. Step 2: Convert to fraction form
    2,913.10/4,021.44 = 1,865.76/x
  3. Step 3: Cross multiply
    2,913.10x = 4,021.44 × 1,865.76
  4. Step 4: Simplify right side
    2,913.10x = 7,503,041.89
  5. Step 5: Solve for x
    x = 7,503,041.89/2,913.10
  6. Step 6: Final answer
    x = 2,575.62

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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.