Home / 1,637.09-2,259.17-1,078.37

Finding the Fourth Proportional to 1,637.09, 2,259.17 and 1,078.37

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Solution

The fourth proportional to 1,637.09, 2,259.17 and 1,078.37 is: 1,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.09 : 2,259.17 = 1,078.37 : x
  2. Step 2: Convert to fraction form
    1,637.09/2,259.17 = 1,078.37/x
  3. Step 3: Cross multiply
    1,637.09x = 2,259.17 × 1,078.37
  4. Step 4: Simplify right side
    1,637.09x = 2,436,215.76
  5. Step 5: Solve for x
    x = 2,436,215.76/1,637.09
  6. Step 6: Final answer
    x = 1,488.14

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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.