Home / 4,879.05-7,320.21-1,547.84

Finding the Fourth Proportional to 4,879.05, 7,320.21 and 1,547.84

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Solution

The fourth proportional to 4,879.05, 7,320.21 and 1,547.84 is: 2,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.05 : 7,320.21 = 1,547.84 : x
  2. Step 2: Convert to fraction form
    4,879.05/7,320.21 = 1,547.84/x
  3. Step 3: Cross multiply
    4,879.05x = 7,320.21 × 1,547.84
  4. Step 4: Simplify right side
    4,879.05x = 11,330,513.85
  5. Step 5: Solve for x
    x = 11,330,513.85/4,879.05
  6. Step 6: Final answer
    x = 2,322.28

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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.