Home / 1,626.02-2,243.90-879.99

Finding the Fourth Proportional to 1,626.02, 2,243.90 and 879.99

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Solution

The fourth proportional to 1,626.02, 2,243.90 and 879.99 is: 1,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.02 : 2,243.90 = 879.99 : x
  2. Step 2: Convert to fraction form
    1,626.02/2,243.90 = 879.99/x
  3. Step 3: Cross multiply
    1,626.02x = 2,243.90 × 879.99
  4. Step 4: Simplify right side
    1,626.02x = 1,974,609.66
  5. Step 5: Solve for x
    x = 1,974,609.66/1,626.02
  6. Step 6: Final answer
    x = 1,214.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.