Home / 3,119.40-4,658.86-2,826.32

Finding the Fourth Proportional to 3,119.40, 4,658.86 and 2,826.32

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Solution

The fourth proportional to 3,119.40, 4,658.86 and 2,826.32 is: 4,221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.40 : 4,658.86 = 2,826.32 : x
  2. Step 2: Convert to fraction form
    3,119.40/4,658.86 = 2,826.32/x
  3. Step 3: Cross multiply
    3,119.40x = 4,658.86 × 2,826.32
  4. Step 4: Simplify right side
    3,119.40x = 13,167,429.20
  5. Step 5: Solve for x
    x = 13,167,429.20/3,119.40
  6. Step 6: Final answer
    x = 4,221.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.