Home / 1,975.36-2,980.64-1,895.52

Finding the Fourth Proportional to 1,975.36, 2,980.64 and 1,895.52

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Solution

The fourth proportional to 1,975.36, 2,980.64 and 1,895.52 is: 2,860.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.36 : 2,980.64 = 1,895.52 : x
  2. Step 2: Convert to fraction form
    1,975.36/2,980.64 = 1,895.52/x
  3. Step 3: Cross multiply
    1,975.36x = 2,980.64 × 1,895.52
  4. Step 4: Simplify right side
    1,975.36x = 5,649,862.73
  5. Step 5: Solve for x
    x = 5,649,862.73/1,975.36
  6. Step 6: Final answer
    x = 2,860.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.