Home / 2,669.70-3,685.14-1,761.30

Finding the Fourth Proportional to 2,669.70, 3,685.14 and 1,761.30

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Solution

The fourth proportional to 2,669.70, 3,685.14 and 1,761.30 is: 2,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.70 : 3,685.14 = 1,761.30 : x
  2. Step 2: Convert to fraction form
    2,669.70/3,685.14 = 1,761.30/x
  3. Step 3: Cross multiply
    2,669.70x = 3,685.14 × 1,761.30
  4. Step 4: Simplify right side
    2,669.70x = 6,490,637.08
  5. Step 5: Solve for x
    x = 6,490,637.08/2,669.70
  6. Step 6: Final answer
    x = 2,431.22

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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.