Home / 4,986.30-7,477.65-2,520.30

Finding the Fourth Proportional to 4,986.30, 7,477.65 and 2,520.30

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Solution

The fourth proportional to 4,986.30, 7,477.65 and 2,520.30 is: 3,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.30 : 7,477.65 = 2,520.30 : x
  2. Step 2: Convert to fraction form
    4,986.30/7,477.65 = 2,520.30/x
  3. Step 3: Cross multiply
    4,986.30x = 7,477.65 × 2,520.30
  4. Step 4: Simplify right side
    4,986.30x = 18,845,921.30
  5. Step 5: Solve for x
    x = 18,845,921.30/4,986.30
  6. Step 6: Final answer
    x = 3,779.54

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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.