Home / 2,831.04-3,907.68-1,784.64

Finding the Fourth Proportional to 2,831.04, 3,907.68 and 1,784.64

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Solution

The fourth proportional to 2,831.04, 3,907.68 and 1,784.64 is: 2,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.04 : 3,907.68 = 1,784.64 : x
  2. Step 2: Convert to fraction form
    2,831.04/3,907.68 = 1,784.64/x
  3. Step 3: Cross multiply
    2,831.04x = 3,907.68 × 1,784.64
  4. Step 4: Simplify right side
    2,831.04x = 6,973,802.04
  5. Step 5: Solve for x
    x = 6,973,802.04/2,831.04
  6. Step 6: Final answer
    x = 2,463.34

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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.