Home / 4,895.85-7,345.95-1,979.85

Finding the Fourth Proportional to 4,895.85, 7,345.95 and 1,979.85

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Solution

The fourth proportional to 4,895.85, 7,345.95 and 1,979.85 is: 2,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.85 : 7,345.95 = 1,979.85 : x
  2. Step 2: Convert to fraction form
    4,895.85/7,345.95 = 1,979.85/x
  3. Step 3: Cross multiply
    4,895.85x = 7,345.95 × 1,979.85
  4. Step 4: Simplify right side
    4,895.85x = 14,543,879.11
  5. Step 5: Solve for x
    x = 14,543,879.11/4,895.85
  6. Step 6: Final answer
    x = 2,970.65

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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.