Home / 1,943.40-2,681.96-1,197.12

Finding the Fourth Proportional to 1,943.40, 2,681.96 and 1,197.12

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Solution

The fourth proportional to 1,943.40, 2,681.96 and 1,197.12 is: 1,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.40 : 2,681.96 = 1,197.12 : x
  2. Step 2: Convert to fraction form
    1,943.40/2,681.96 = 1,197.12/x
  3. Step 3: Cross multiply
    1,943.40x = 2,681.96 × 1,197.12
  4. Step 4: Simplify right side
    1,943.40x = 3,210,627.96
  5. Step 5: Solve for x
    x = 3,210,627.96/1,943.40
  6. Step 6: Final answer
    x = 1,652.07

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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.