Home / 1,831.41-2,526.80-1,242.54

Finding the Fourth Proportional to 1,831.41, 2,526.80 and 1,242.54

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Solution

The fourth proportional to 1,831.41, 2,526.80 and 1,242.54 is: 1,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.41 : 2,526.80 = 1,242.54 : x
  2. Step 2: Convert to fraction form
    1,831.41/2,526.80 = 1,242.54/x
  3. Step 3: Cross multiply
    1,831.41x = 2,526.80 × 1,242.54
  4. Step 4: Simplify right side
    1,831.41x = 3,139,643.86
  5. Step 5: Solve for x
    x = 3,139,643.86/1,831.41
  6. Step 6: Final answer
    x = 1,714.33

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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.