Home / 3,127.36-4,315.61-1,852.05

Finding the Fourth Proportional to 3,127.36, 4,315.61 and 1,852.05

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Solution

The fourth proportional to 3,127.36, 4,315.61 and 1,852.05 is: 2,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.36 : 4,315.61 = 1,852.05 : x
  2. Step 2: Convert to fraction form
    3,127.36/4,315.61 = 1,852.05/x
  3. Step 3: Cross multiply
    3,127.36x = 4,315.61 × 1,852.05
  4. Step 4: Simplify right side
    3,127.36x = 7,992,725.50
  5. Step 5: Solve for x
    x = 7,992,725.50/3,127.36
  6. Step 6: Final answer
    x = 2,555.74

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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.