Home / 1,629.87-2,445.21-808.53

Finding the Fourth Proportional to 1,629.87, 2,445.21 and 808.53

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Solution

The fourth proportional to 1,629.87, 2,445.21 and 808.53 is: 1,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.87 : 2,445.21 = 808.53 : x
  2. Step 2: Convert to fraction form
    1,629.87/2,445.21 = 808.53/x
  3. Step 3: Cross multiply
    1,629.87x = 2,445.21 × 808.53
  4. Step 4: Simplify right side
    1,629.87x = 1,977,025.64
  5. Step 5: Solve for x
    x = 1,977,025.64/1,629.87
  6. Step 6: Final answer
    x = 1,213.00

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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.