Home / 2,777.33-3,831.62-1,782.45

Finding the Fourth Proportional to 2,777.33, 3,831.62 and 1,782.45

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Solution

The fourth proportional to 2,777.33, 3,831.62 and 1,782.45 is: 2,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.33 : 3,831.62 = 1,782.45 : x
  2. Step 2: Convert to fraction form
    2,777.33/3,831.62 = 1,782.45/x
  3. Step 3: Cross multiply
    2,777.33x = 3,831.62 × 1,782.45
  4. Step 4: Simplify right side
    2,777.33x = 6,829,662.16
  5. Step 5: Solve for x
    x = 6,829,662.16/2,777.33
  6. Step 6: Final answer
    x = 2,459.08

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1.5x scale

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.