Home / 3,127.44-4,315.70-1,783.05

Finding the Fourth Proportional to 3,127.44, 4,315.70 and 1,783.05

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Solution

The fourth proportional to 3,127.44, 4,315.70 and 1,783.05 is: 2,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.44 : 4,315.70 = 1,783.05 : x
  2. Step 2: Convert to fraction form
    3,127.44/4,315.70 = 1,783.05/x
  3. Step 3: Cross multiply
    3,127.44x = 4,315.70 × 1,783.05
  4. Step 4: Simplify right side
    3,127.44x = 7,695,108.89
  5. Step 5: Solve for x
    x = 7,695,108.89/3,127.44
  6. Step 6: Final answer
    x = 2,460.51

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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.