Home / 2,666.02-3,995.38-1,690.37

Finding the Fourth Proportional to 2,666.02, 3,995.38 and 1,690.37

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Solution

The fourth proportional to 2,666.02, 3,995.38 and 1,690.37 is: 2,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.02 : 3,995.38 = 1,690.37 : x
  2. Step 2: Convert to fraction form
    2,666.02/3,995.38 = 1,690.37/x
  3. Step 3: Cross multiply
    2,666.02x = 3,995.38 × 1,690.37
  4. Step 4: Simplify right side
    2,666.02x = 6,753,670.49
  5. Step 5: Solve for x
    x = 6,753,670.49/2,666.02
  6. Step 6: Final answer
    x = 2,533.24

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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.