Home / 2,072.68-2,860.25-1,210.47

Finding the Fourth Proportional to 2,072.68, 2,860.25 and 1,210.47

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Solution

The fourth proportional to 2,072.68, 2,860.25 and 1,210.47 is: 1,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.68 : 2,860.25 = 1,210.47 : x
  2. Step 2: Convert to fraction form
    2,072.68/2,860.25 = 1,210.47/x
  3. Step 3: Cross multiply
    2,072.68x = 2,860.25 × 1,210.47
  4. Step 4: Simplify right side
    2,072.68x = 3,462,242.07
  5. Step 5: Solve for x
    x = 3,462,242.07/2,072.68
  6. Step 6: Final answer
    x = 1,670.42

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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.