Home / 2,923.75-4,034.87-1,681.75

Finding the Fourth Proportional to 2,923.75, 4,034.87 and 1,681.75

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Solution

The fourth proportional to 2,923.75, 4,034.87 and 1,681.75 is: 2,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.75 : 4,034.87 = 1,681.75 : x
  2. Step 2: Convert to fraction form
    2,923.75/4,034.87 = 1,681.75/x
  3. Step 3: Cross multiply
    2,923.75x = 4,034.87 × 1,681.75
  4. Step 4: Simplify right side
    2,923.75x = 6,785,634.21
  5. Step 5: Solve for x
    x = 6,785,634.21/2,923.75
  6. Step 6: Final answer
    x = 2,320.87

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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.