Home / 1,995.38-2,756.13-1,681.69

Finding the Fourth Proportional to 1,995.38, 2,756.13 and 1,681.69

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Solution

The fourth proportional to 1,995.38, 2,756.13 and 1,681.69 is: 2,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.38 : 2,756.13 = 1,681.69 : x
  2. Step 2: Convert to fraction form
    1,995.38/2,756.13 = 1,681.69/x
  3. Step 3: Cross multiply
    1,995.38x = 2,756.13 × 1,681.69
  4. Step 4: Simplify right side
    1,995.38x = 4,634,955.68
  5. Step 5: Solve for x
    x = 4,634,955.68/1,995.38
  6. Step 6: Final answer
    x = 2,322.84

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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.