Home / 3,105.32-4,284.96-1,846.40

Finding the Fourth Proportional to 3,105.32, 4,284.96 and 1,846.40

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Solution

The fourth proportional to 3,105.32, 4,284.96 and 1,846.40 is: 2,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.32 : 4,284.96 = 1,846.40 : x
  2. Step 2: Convert to fraction form
    3,105.32/4,284.96 = 1,846.40/x
  3. Step 3: Cross multiply
    3,105.32x = 4,284.96 × 1,846.40
  4. Step 4: Simplify right side
    3,105.32x = 7,911,750.14
  5. Step 5: Solve for x
    x = 7,911,750.14/3,105.32
  6. Step 6: Final answer
    x = 2,547.81

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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.