Home / 4,984.56-7,477.65-1,521

Finding the Fourth Proportional to 4,984.56, 7,477.65 and 1,521

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Solution

The fourth proportional to 4,984.56, 7,477.65 and 1,521 is: 2,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.56 : 7,477.65 = 1,521 : x
  2. Step 2: Convert to fraction form
    4,984.56/7,477.65 = 1,521/x
  3. Step 3: Cross multiply
    4,984.56x = 7,477.65 × 1,521
  4. Step 4: Simplify right side
    4,984.56x = 11,373,505.65
  5. Step 5: Solve for x
    x = 11,373,505.65/4,984.56
  6. Step 6: Final answer
    x = 2,281.75

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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.