Home / 4,830.08-6,665.40-2,840.20

Finding the Fourth Proportional to 4,830.08, 6,665.40 and 2,840.20

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Solution

The fourth proportional to 4,830.08, 6,665.40 and 2,840.20 is: 3,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,830.08 : 6,665.40 = 2,840.20 : x
  2. Step 2: Convert to fraction form
    4,830.08/6,665.40 = 2,840.20/x
  3. Step 3: Cross multiply
    4,830.08x = 6,665.40 × 2,840.20
  4. Step 4: Simplify right side
    4,830.08x = 18,931,069.08
  5. Step 5: Solve for x
    x = 18,931,069.08/4,830.08
  6. Step 6: Final answer
    x = 3,919.41

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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.