Home / 5,385.02-8,077.44-1,687.22

Finding the Fourth Proportional to 5,385.02, 8,077.44 and 1,687.22

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Solution

The fourth proportional to 5,385.02, 8,077.44 and 1,687.22 is: 2,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.02 : 8,077.44 = 1,687.22 : x
  2. Step 2: Convert to fraction form
    5,385.02/8,077.44 = 1,687.22/x
  3. Step 3: Cross multiply
    5,385.02x = 8,077.44 × 1,687.22
  4. Step 4: Simplify right side
    5,385.02x = 13,628,418.32
  5. Step 5: Solve for x
    x = 13,628,418.32/5,385.02
  6. Step 6: Final answer
    x = 2,530.80

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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.