Home / 4,539.90-6,809.85-1,618.30

Finding the Fourth Proportional to 4,539.90, 6,809.85 and 1,618.30

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Solution

The fourth proportional to 4,539.90, 6,809.85 and 1,618.30 is: 2,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,539.90 : 6,809.85 = 1,618.30 : x
  2. Step 2: Convert to fraction form
    4,539.90/6,809.85 = 1,618.30/x
  3. Step 3: Cross multiply
    4,539.90x = 6,809.85 × 1,618.30
  4. Step 4: Simplify right side
    4,539.90x = 11,020,380.26
  5. Step 5: Solve for x
    x = 11,020,380.26/4,539.90
  6. Step 6: Final answer
    x = 2,427.45

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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.