Home / 2,992.02-4,129.10-1,665.87

Finding the Fourth Proportional to 2,992.02, 4,129.10 and 1,665.87

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Solution

The fourth proportional to 2,992.02, 4,129.10 and 1,665.87 is: 2,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.02 : 4,129.10 = 1,665.87 : x
  2. Step 2: Convert to fraction form
    2,992.02/4,129.10 = 1,665.87/x
  3. Step 3: Cross multiply
    2,992.02x = 4,129.10 × 1,665.87
  4. Step 4: Simplify right side
    2,992.02x = 6,878,543.82
  5. Step 5: Solve for x
    x = 6,878,543.82/2,992.02
  6. Step 6: Final answer
    x = 2,298.96

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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.