Home / 1,652.02-2,279.79-905.99

Finding the Fourth Proportional to 1,652.02, 2,279.79 and 905.99

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Solution

The fourth proportional to 1,652.02, 2,279.79 and 905.99 is: 1,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.02 : 2,279.79 = 905.99 : x
  2. Step 2: Convert to fraction form
    1,652.02/2,279.79 = 905.99/x
  3. Step 3: Cross multiply
    1,652.02x = 2,279.79 × 905.99
  4. Step 4: Simplify right side
    1,652.02x = 2,065,455.54
  5. Step 5: Solve for x
    x = 2,065,455.54/1,652.02
  6. Step 6: Final answer
    x = 1,250.26

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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.