Home / 2,810.05-4,215.40-1,165.68

Finding the Fourth Proportional to 2,810.05, 4,215.40 and 1,165.68

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Solution

The fourth proportional to 2,810.05, 4,215.40 and 1,165.68 is: 1,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.05 : 4,215.40 = 1,165.68 : x
  2. Step 2: Convert to fraction form
    2,810.05/4,215.40 = 1,165.68/x
  3. Step 3: Cross multiply
    2,810.05x = 4,215.40 × 1,165.68
  4. Step 4: Simplify right side
    2,810.05x = 4,913,804.56
  5. Step 5: Solve for x
    x = 4,913,804.56/2,810.05
  6. Step 6: Final answer
    x = 1,748.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.