Home / 2,631.15-3,628.40-2,041.47

Finding the Fourth Proportional to 2,631.15, 3,628.40 and 2,041.47

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Solution

The fourth proportional to 2,631.15, 3,628.40 and 2,041.47 is: 2,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.15 : 3,628.40 = 2,041.47 : x
  2. Step 2: Convert to fraction form
    2,631.15/3,628.40 = 2,041.47/x
  3. Step 3: Cross multiply
    2,631.15x = 3,628.40 × 2,041.47
  4. Step 4: Simplify right side
    2,631.15x = 7,407,259.54
  5. Step 5: Solve for x
    x = 7,407,259.54/2,631.15
  6. Step 6: Final answer
    x = 2,815.22

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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.