Home / 1,673.15-2,309.07-927.18

Finding the Fourth Proportional to 1,673.15, 2,309.07 and 927.18

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Solution

The fourth proportional to 1,673.15, 2,309.07 and 927.18 is: 1,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.15 : 2,309.07 = 927.18 : x
  2. Step 2: Convert to fraction form
    1,673.15/2,309.07 = 927.18/x
  3. Step 3: Cross multiply
    1,673.15x = 2,309.07 × 927.18
  4. Step 4: Simplify right side
    1,673.15x = 2,140,923.52
  5. Step 5: Solve for x
    x = 2,140,923.52/1,673.15
  6. Step 6: Final answer
    x = 1,279.58

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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.