Home / 5,246.72-7,803.94-4,779.20

Finding the Fourth Proportional to 5,246.72, 7,803.94 and 4,779.20

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Solution

The fourth proportional to 5,246.72, 7,803.94 and 4,779.20 is: 7,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.72 : 7,803.94 = 4,779.20 : x
  2. Step 2: Convert to fraction form
    5,246.72/7,803.94 = 4,779.20/x
  3. Step 3: Cross multiply
    5,246.72x = 7,803.94 × 4,779.20
  4. Step 4: Simplify right side
    5,246.72x = 37,296,590.05
  5. Step 5: Solve for x
    x = 37,296,590.05/5,246.72
  6. Step 6: Final answer
    x = 7,108.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.