Home / 4,639.36-6,401.28-2,776.96

Finding the Fourth Proportional to 4,639.36, 6,401.28 and 2,776.96

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Solution

The fourth proportional to 4,639.36, 6,401.28 and 2,776.96 is: 3,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.36 : 6,401.28 = 2,776.96 : x
  2. Step 2: Convert to fraction form
    4,639.36/6,401.28 = 2,776.96/x
  3. Step 3: Cross multiply
    4,639.36x = 6,401.28 × 2,776.96
  4. Step 4: Simplify right side
    4,639.36x = 17,776,098.51
  5. Step 5: Solve for x
    x = 17,776,098.51/4,639.36
  6. Step 6: Final answer
    x = 3,831.58

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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.