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Finding the Fourth Proportional to 1,064.88, 1,460.88 and 1,054.80

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Solution

The fourth proportional to 1,064.88, 1,460.88 and 1,054.80 is: 1,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.88 : 1,460.88 = 1,054.80 : x
  2. Step 2: Convert to fraction form
    1,064.88/1,460.88 = 1,054.80/x
  3. Step 3: Cross multiply
    1,064.88x = 1,460.88 × 1,054.80
  4. Step 4: Simplify right side
    1,064.88x = 1,540,936.22
  5. Step 5: Solve for x
    x = 1,540,936.22/1,064.88
  6. Step 6: Final answer
    x = 1,447.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.