Home / 3,011.37-4,155.86-1,685.04

Finding the Fourth Proportional to 3,011.37, 4,155.86 and 1,685.04

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Solution

The fourth proportional to 3,011.37, 4,155.86 and 1,685.04 is: 2,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.37 : 4,155.86 = 1,685.04 : x
  2. Step 2: Convert to fraction form
    3,011.37/4,155.86 = 1,685.04/x
  3. Step 3: Cross multiply
    3,011.37x = 4,155.86 × 1,685.04
  4. Step 4: Simplify right side
    3,011.37x = 7,002,790.33
  5. Step 5: Solve for x
    x = 7,002,790.33/3,011.37
  6. Step 6: Final answer
    x = 2,325.45

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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.