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Finding the Fourth Proportional to 1,254.02, 1,742.51 and 1,240.52

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Solution

The fourth proportional to 1,254.02, 1,742.51 and 1,240.52 is: 1,723.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.02 : 1,742.51 = 1,240.52 : x
  2. Step 2: Convert to fraction form
    1,254.02/1,742.51 = 1,240.52/x
  3. Step 3: Cross multiply
    1,254.02x = 1,742.51 × 1,240.52
  4. Step 4: Simplify right side
    1,254.02x = 2,161,618.51
  5. Step 5: Solve for x
    x = 2,161,618.51/1,254.02
  6. Step 6: Final answer
    x = 1,723.75

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.