Home / 2,998.05-4,134.51-1,878.63

Finding the Fourth Proportional to 2,998.05, 4,134.51 and 1,878.63

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Solution

The fourth proportional to 2,998.05, 4,134.51 and 1,878.63 is: 2,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.05 : 4,134.51 = 1,878.63 : x
  2. Step 2: Convert to fraction form
    2,998.05/4,134.51 = 1,878.63/x
  3. Step 3: Cross multiply
    2,998.05x = 4,134.51 × 1,878.63
  4. Step 4: Simplify right side
    2,998.05x = 7,767,214.52
  5. Step 5: Solve for x
    x = 7,767,214.52/2,998.05
  6. Step 6: Final answer
    x = 2,590.76

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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.