Home / 4,479.70-6,719.55-1,555.94

Finding the Fourth Proportional to 4,479.70, 6,719.55 and 1,555.94

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Solution

The fourth proportional to 4,479.70, 6,719.55 and 1,555.94 is: 2,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.70 : 6,719.55 = 1,555.94 : x
  2. Step 2: Convert to fraction form
    4,479.70/6,719.55 = 1,555.94/x
  3. Step 3: Cross multiply
    4,479.70x = 6,719.55 × 1,555.94
  4. Step 4: Simplify right side
    4,479.70x = 10,455,216.63
  5. Step 5: Solve for x
    x = 10,455,216.63/4,479.70
  6. Step 6: Final answer
    x = 2,333.91

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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.