Home / 1,817.07-2,507.22-1,020.21

Finding the Fourth Proportional to 1,817.07, 2,507.22 and 1,020.21

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Solution

The fourth proportional to 1,817.07, 2,507.22 and 1,020.21 is: 1,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.07 : 2,507.22 = 1,020.21 : x
  2. Step 2: Convert to fraction form
    1,817.07/2,507.22 = 1,020.21/x
  3. Step 3: Cross multiply
    1,817.07x = 2,507.22 × 1,020.21
  4. Step 4: Simplify right side
    1,817.07x = 2,557,890.92
  5. Step 5: Solve for x
    x = 2,557,890.92/1,817.07
  6. Step 6: Final answer
    x = 1,407.70

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1.5x scale

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.