Home / 2,610.19-3,602.09-1,431.28

Finding the Fourth Proportional to 2,610.19, 3,602.09 and 1,431.28

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Solution

The fourth proportional to 2,610.19, 3,602.09 and 1,431.28 is: 1,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.19 : 3,602.09 = 1,431.28 : x
  2. Step 2: Convert to fraction form
    2,610.19/3,602.09 = 1,431.28/x
  3. Step 3: Cross multiply
    2,610.19x = 3,602.09 × 1,431.28
  4. Step 4: Simplify right side
    2,610.19x = 5,155,599.38
  5. Step 5: Solve for x
    x = 5,155,599.38/2,610.19
  6. Step 6: Final answer
    x = 1,975.18

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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.