Home / 5,219.85-7,830.96-1,757.10

Finding the Fourth Proportional to 5,219.85, 7,830.96 and 1,757.10

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Solution

The fourth proportional to 5,219.85, 7,830.96 and 1,757.10 is: 2,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.85 : 7,830.96 = 1,757.10 : x
  2. Step 2: Convert to fraction form
    5,219.85/7,830.96 = 1,757.10/x
  3. Step 3: Cross multiply
    5,219.85x = 7,830.96 × 1,757.10
  4. Step 4: Simplify right side
    5,219.85x = 13,759,779.82
  5. Step 5: Solve for x
    x = 13,759,779.82/5,219.85
  6. Step 6: Final answer
    x = 2,636.05

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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.