Home / 2,783.17-3,820.30-2,461.38

Finding the Fourth Proportional to 2,783.17, 3,820.30 and 2,461.38

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Solution

The fourth proportional to 2,783.17, 3,820.30 and 2,461.38 is: 3,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.17 : 3,820.30 = 2,461.38 : x
  2. Step 2: Convert to fraction form
    2,783.17/3,820.30 = 2,461.38/x
  3. Step 3: Cross multiply
    2,783.17x = 3,820.30 × 2,461.38
  4. Step 4: Simplify right side
    2,783.17x = 9,403,210.01
  5. Step 5: Solve for x
    x = 9,403,210.01/2,783.17
  6. Step 6: Final answer
    x = 3,378.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.