Home / 2,610.40-3,602.28-1,431.52

Finding the Fourth Proportional to 2,610.40, 3,602.28 and 1,431.52

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Solution

The fourth proportional to 2,610.40, 3,602.28 and 1,431.52 is: 1,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.40 : 3,602.28 = 1,431.52 : x
  2. Step 2: Convert to fraction form
    2,610.40/3,602.28 = 1,431.52/x
  3. Step 3: Cross multiply
    2,610.40x = 3,602.28 × 1,431.52
  4. Step 4: Simplify right side
    2,610.40x = 5,156,735.87
  5. Step 5: Solve for x
    x = 5,156,735.87/2,610.40
  6. Step 6: Final answer
    x = 1,975.46

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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.