Home / 1,997.81-2,756.16-1,325.93

Finding the Fourth Proportional to 1,997.81, 2,756.16 and 1,325.93

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Solution

The fourth proportional to 1,997.81, 2,756.16 and 1,325.93 is: 1,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.81 : 2,756.16 = 1,325.93 : x
  2. Step 2: Convert to fraction form
    1,997.81/2,756.16 = 1,325.93/x
  3. Step 3: Cross multiply
    1,997.81x = 2,756.16 × 1,325.93
  4. Step 4: Simplify right side
    1,997.81x = 3,654,475.23
  5. Step 5: Solve for x
    x = 3,654,475.23/1,997.81
  6. Step 6: Final answer
    x = 1,829.24

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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.