Home / 4,980.48-6,872.64-2,963.84

Finding the Fourth Proportional to 4,980.48, 6,872.64 and 2,963.84

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Solution

The fourth proportional to 4,980.48, 6,872.64 and 2,963.84 is: 4,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.48 : 6,872.64 = 2,963.84 : x
  2. Step 2: Convert to fraction form
    4,980.48/6,872.64 = 2,963.84/x
  3. Step 3: Cross multiply
    4,980.48x = 6,872.64 × 2,963.84
  4. Step 4: Simplify right side
    4,980.48x = 20,369,405.34
  5. Step 5: Solve for x
    x = 20,369,405.34/4,980.48
  6. Step 6: Final answer
    x = 4,089.85

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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.