Home / 2,610.63-3,602.67-1,431.70

Finding the Fourth Proportional to 2,610.63, 3,602.67 and 1,431.70

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Solution

The fourth proportional to 2,610.63, 3,602.67 and 1,431.70 is: 1,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.63 : 3,602.67 = 1,431.70 : x
  2. Step 2: Convert to fraction form
    2,610.63/3,602.67 = 1,431.70/x
  3. Step 3: Cross multiply
    2,610.63x = 3,602.67 × 1,431.70
  4. Step 4: Simplify right side
    2,610.63x = 5,157,958.60
  5. Step 5: Solve for x
    x = 5,157,958.60/2,610.63
  6. Step 6: Final answer
    x = 1,975.75

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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.