Home / 1,975.40-2,719.14-1,802.60

Finding the Fourth Proportional to 1,975.40, 2,719.14 and 1,802.60

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Solution

The fourth proportional to 1,975.40, 2,719.14 and 1,802.60 is: 2,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.40 : 2,719.14 = 1,802.60 : x
  2. Step 2: Convert to fraction form
    1,975.40/2,719.14 = 1,802.60/x
  3. Step 3: Cross multiply
    1,975.40x = 2,719.14 × 1,802.60
  4. Step 4: Simplify right side
    1,975.40x = 4,901,521.76
  5. Step 5: Solve for x
    x = 4,901,521.76/1,975.40
  6. Step 6: Final answer
    x = 2,481.28

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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.