Home / 4,386.15-6,579.35-1,919.70

Finding the Fourth Proportional to 4,386.15, 6,579.35 and 1,919.70

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Solution

The fourth proportional to 4,386.15, 6,579.35 and 1,919.70 is: 2,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.15 : 6,579.35 = 1,919.70 : x
  2. Step 2: Convert to fraction form
    4,386.15/6,579.35 = 1,919.70/x
  3. Step 3: Cross multiply
    4,386.15x = 6,579.35 × 1,919.70
  4. Step 4: Simplify right side
    4,386.15x = 12,630,378.20
  5. Step 5: Solve for x
    x = 12,630,378.20/4,386.15
  6. Step 6: Final answer
    x = 2,879.60

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1.5x scale

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.