Home / 2,802.97-3,868.31-1,857.16

Finding the Fourth Proportional to 2,802.97, 3,868.31 and 1,857.16

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Solution

The fourth proportional to 2,802.97, 3,868.31 and 1,857.16 is: 2,563.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.97 : 3,868.31 = 1,857.16 : x
  2. Step 2: Convert to fraction form
    2,802.97/3,868.31 = 1,857.16/x
  3. Step 3: Cross multiply
    2,802.97x = 3,868.31 × 1,857.16
  4. Step 4: Simplify right side
    2,802.97x = 7,184,069.63
  5. Step 5: Solve for x
    x = 7,184,069.63/2,802.97
  6. Step 6: Final answer
    x = 2,563.02

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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.