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Finding the Fourth Proportional to 1,363.55, 1,881.41 and 943.23

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Solution

The fourth proportional to 1,363.55, 1,881.41 and 943.23 is: 1,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.55 : 1,881.41 = 943.23 : x
  2. Step 2: Convert to fraction form
    1,363.55/1,881.41 = 943.23/x
  3. Step 3: Cross multiply
    1,363.55x = 1,881.41 × 943.23
  4. Step 4: Simplify right side
    1,363.55x = 1,774,599.42
  5. Step 5: Solve for x
    x = 1,774,599.42/1,363.55
  6. Step 6: Final answer
    x = 1,301.45

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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.