Home / 1,889.60-2,607.02-1,143.27

Finding the Fourth Proportional to 1,889.60, 2,607.02 and 1,143.27

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Solution

The fourth proportional to 1,889.60, 2,607.02 and 1,143.27 is: 1,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.60 : 2,607.02 = 1,143.27 : x
  2. Step 2: Convert to fraction form
    1,889.60/2,607.02 = 1,143.27/x
  3. Step 3: Cross multiply
    1,889.60x = 2,607.02 × 1,143.27
  4. Step 4: Simplify right side
    1,889.60x = 2,980,526.33
  5. Step 5: Solve for x
    x = 2,980,526.33/1,889.60
  6. Step 6: Final answer
    x = 1,577.34

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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.