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Finding the Fourth Proportional to 1,871.76, 2,583.96 and 1,451.16

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Solution

The fourth proportional to 1,871.76, 2,583.96 and 1,451.16 is: 2,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.76 : 2,583.96 = 1,451.16 : x
  2. Step 2: Convert to fraction form
    1,871.76/2,583.96 = 1,451.16/x
  3. Step 3: Cross multiply
    1,871.76x = 2,583.96 × 1,451.16
  4. Step 4: Simplify right side
    1,871.76x = 3,749,739.39
  5. Step 5: Solve for x
    x = 3,749,739.39/1,871.76
  6. Step 6: Final answer
    x = 2,003.32

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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.