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Finding the Fourth Proportional to 1,365.74, 2,058.60 and 1,248.88

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Solution

The fourth proportional to 1,365.74, 2,058.60 and 1,248.88 is: 1,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.74 : 2,058.60 = 1,248.88 : x
  2. Step 2: Convert to fraction form
    1,365.74/2,058.60 = 1,248.88/x
  3. Step 3: Cross multiply
    1,365.74x = 2,058.60 × 1,248.88
  4. Step 4: Simplify right side
    1,365.74x = 2,570,944.37
  5. Step 5: Solve for x
    x = 2,570,944.37/1,365.74
  6. Step 6: Final answer
    x = 1,882.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.