Home / 4,939.84-7,409.58-1,477

Finding the Fourth Proportional to 4,939.84, 7,409.58 and 1,477

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Solution

The fourth proportional to 4,939.84, 7,409.58 and 1,477 is: 2,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.84 : 7,409.58 = 1,477 : x
  2. Step 2: Convert to fraction form
    4,939.84/7,409.58 = 1,477/x
  3. Step 3: Cross multiply
    4,939.84x = 7,409.58 × 1,477
  4. Step 4: Simplify right side
    4,939.84x = 10,943,949.66
  5. Step 5: Solve for x
    x = 10,943,949.66/4,939.84
  6. Step 6: Final answer
    x = 2,215.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.