Home / 4,980.08-6,870.60-2,883.92

Finding the Fourth Proportional to 4,980.08, 6,870.60 and 2,883.92

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Solution

The fourth proportional to 4,980.08, 6,870.60 and 2,883.92 is: 3,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.08 : 6,870.60 = 2,883.92 : x
  2. Step 2: Convert to fraction form
    4,980.08/6,870.60 = 2,883.92/x
  3. Step 3: Cross multiply
    4,980.08x = 6,870.60 × 2,883.92
  4. Step 4: Simplify right side
    4,980.08x = 19,814,260.75
  5. Step 5: Solve for x
    x = 19,814,260.75/4,980.08
  6. Step 6: Final answer
    x = 3,978.70

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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.