Home / 2,820.24-3,890.21-1,700.46

Finding the Fourth Proportional to 2,820.24, 3,890.21 and 1,700.46

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Solution

The fourth proportional to 2,820.24, 3,890.21 and 1,700.46 is: 2,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.24 : 3,890.21 = 1,700.46 : x
  2. Step 2: Convert to fraction form
    2,820.24/3,890.21 = 1,700.46/x
  3. Step 3: Cross multiply
    2,820.24x = 3,890.21 × 1,700.46
  4. Step 4: Simplify right side
    2,820.24x = 6,615,137.99
  5. Step 5: Solve for x
    x = 6,615,137.99/2,820.24
  6. Step 6: Final answer
    x = 2,345.59

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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.