Home / 4,678.41-6,454.55-3,000.72

Finding the Fourth Proportional to 4,678.41, 6,454.55 and 3,000.72

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Solution

The fourth proportional to 4,678.41, 6,454.55 and 3,000.72 is: 4,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.41 : 6,454.55 = 3,000.72 : x
  2. Step 2: Convert to fraction form
    4,678.41/6,454.55 = 3,000.72/x
  3. Step 3: Cross multiply
    4,678.41x = 6,454.55 × 3,000.72
  4. Step 4: Simplify right side
    4,678.41x = 19,368,297.28
  5. Step 5: Solve for x
    x = 19,368,297.28/4,678.41
  6. Step 6: Final answer
    x = 4,139.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.