Home / 1,790.16-2,697.40-1,472.64

Finding the Fourth Proportional to 1,790.16, 2,697.40 and 1,472.64

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Solution

The fourth proportional to 1,790.16, 2,697.40 and 1,472.64 is: 2,218.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.16 : 2,697.40 = 1,472.64 : x
  2. Step 2: Convert to fraction form
    1,790.16/2,697.40 = 1,472.64/x
  3. Step 3: Cross multiply
    1,790.16x = 2,697.40 × 1,472.64
  4. Step 4: Simplify right side
    1,790.16x = 3,972,299.14
  5. Step 5: Solve for x
    x = 3,972,299.14/1,790.16
  6. Step 6: Final answer
    x = 2,218.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.