Home / 1,889.87-2,831.36-1,010.21

Finding the Fourth Proportional to 1,889.87, 2,831.36 and 1,010.21

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Solution

The fourth proportional to 1,889.87, 2,831.36 and 1,010.21 is: 1,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.87 : 2,831.36 = 1,010.21 : x
  2. Step 2: Convert to fraction form
    1,889.87/2,831.36 = 1,010.21/x
  3. Step 3: Cross multiply
    1,889.87x = 2,831.36 × 1,010.21
  4. Step 4: Simplify right side
    1,889.87x = 2,860,248.98
  5. Step 5: Solve for x
    x = 2,860,248.98/1,889.87
  6. Step 6: Final answer
    x = 1,513.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.