Home / 2,986.16-4,119.54-2,098.40

Finding the Fourth Proportional to 2,986.16, 4,119.54 and 2,098.40

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Solution

The fourth proportional to 2,986.16, 4,119.54 and 2,098.40 is: 2,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.16 : 4,119.54 = 2,098.40 : x
  2. Step 2: Convert to fraction form
    2,986.16/4,119.54 = 2,098.40/x
  3. Step 3: Cross multiply
    2,986.16x = 4,119.54 × 2,098.40
  4. Step 4: Simplify right side
    2,986.16x = 8,644,442.74
  5. Step 5: Solve for x
    x = 8,644,442.74/2,986.16
  6. Step 6: Final answer
    x = 2,894.84

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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.