Home / 4,480.24-6,721.58-1,558.78

Finding the Fourth Proportional to 4,480.24, 6,721.58 and 1,558.78

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Solution

The fourth proportional to 4,480.24, 6,721.58 and 1,558.78 is: 2,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.24 : 6,721.58 = 1,558.78 : x
  2. Step 2: Convert to fraction form
    4,480.24/6,721.58 = 1,558.78/x
  3. Step 3: Cross multiply
    4,480.24x = 6,721.58 × 1,558.78
  4. Step 4: Simplify right side
    4,480.24x = 10,477,423.07
  5. Step 5: Solve for x
    x = 10,477,423.07/4,480.24
  6. Step 6: Final answer
    x = 2,338.59

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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.