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Finding the Fourth Proportional to 1,362.51, 1,880.26 and 741.51

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Solution

The fourth proportional to 1,362.51, 1,880.26 and 741.51 is: 1,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.51 : 1,880.26 = 741.51 : x
  2. Step 2: Convert to fraction form
    1,362.51/1,880.26 = 741.51/x
  3. Step 3: Cross multiply
    1,362.51x = 1,880.26 × 741.51
  4. Step 4: Simplify right side
    1,362.51x = 1,394,227.89
  5. Step 5: Solve for x
    x = 1,394,227.89/1,362.51
  6. Step 6: Final answer
    x = 1,023.28

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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.