Home / 2,998.48-4,139.18-1,880.05

Finding the Fourth Proportional to 2,998.48, 4,139.18 and 1,880.05

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Solution

The fourth proportional to 2,998.48, 4,139.18 and 1,880.05 is: 2,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.48 : 4,139.18 = 1,880.05 : x
  2. Step 2: Convert to fraction form
    2,998.48/4,139.18 = 1,880.05/x
  3. Step 3: Cross multiply
    2,998.48x = 4,139.18 × 1,880.05
  4. Step 4: Simplify right side
    2,998.48x = 7,781,855.96
  5. Step 5: Solve for x
    x = 7,781,855.96/2,998.48
  6. Step 6: Final answer
    x = 2,595.27

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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.