Home / 2,018.40-3,041.34-1,661.20

Finding the Fourth Proportional to 2,018.40, 3,041.34 and 1,661.20

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Solution

The fourth proportional to 2,018.40, 3,041.34 and 1,661.20 is: 2,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.40 : 3,041.34 = 1,661.20 : x
  2. Step 2: Convert to fraction form
    2,018.40/3,041.34 = 1,661.20/x
  3. Step 3: Cross multiply
    2,018.40x = 3,041.34 × 1,661.20
  4. Step 4: Simplify right side
    2,018.40x = 5,052,274.01
  5. Step 5: Solve for x
    x = 5,052,274.01/2,018.40
  6. Step 6: Final answer
    x = 2,503.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.