Home / 1,689.51-2,537.92-1,430.02

Finding the Fourth Proportional to 1,689.51, 2,537.92 and 1,430.02

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Solution

The fourth proportional to 1,689.51, 2,537.92 and 1,430.02 is: 2,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.51 : 2,537.92 = 1,430.02 : x
  2. Step 2: Convert to fraction form
    1,689.51/2,537.92 = 1,430.02/x
  3. Step 3: Cross multiply
    1,689.51x = 2,537.92 × 1,430.02
  4. Step 4: Simplify right side
    1,689.51x = 3,629,273.27
  5. Step 5: Solve for x
    x = 3,629,273.27/1,689.51
  6. Step 6: Final answer
    x = 2,148.12

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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.