Home / 1,637.56-2,259.90-939.16

Finding the Fourth Proportional to 1,637.56, 2,259.90 and 939.16

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Solution

The fourth proportional to 1,637.56, 2,259.90 and 939.16 is: 1,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.56 : 2,259.90 = 939.16 : x
  2. Step 2: Convert to fraction form
    1,637.56/2,259.90 = 939.16/x
  3. Step 3: Cross multiply
    1,637.56x = 2,259.90 × 939.16
  4. Step 4: Simplify right side
    1,637.56x = 2,122,407.68
  5. Step 5: Solve for x
    x = 2,122,407.68/1,637.56
  6. Step 6: Final answer
    x = 1,296.08

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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.