Home / 2,991.08-4,486.62-1,345.70

Finding the Fourth Proportional to 2,991.08, 4,486.62 and 1,345.70

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Solution

The fourth proportional to 2,991.08, 4,486.62 and 1,345.70 is: 2,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.08 : 4,486.62 = 1,345.70 : x
  2. Step 2: Convert to fraction form
    2,991.08/4,486.62 = 1,345.70/x
  3. Step 3: Cross multiply
    2,991.08x = 4,486.62 × 1,345.70
  4. Step 4: Simplify right side
    2,991.08x = 6,037,655.75
  5. Step 5: Solve for x
    x = 6,037,655.75/2,991.08
  6. Step 6: Final answer
    x = 2,018.55

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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.