Home / 4,980.55-6,873.56-2,856.28

Finding the Fourth Proportional to 4,980.55, 6,873.56 and 2,856.28

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Solution

The fourth proportional to 4,980.55, 6,873.56 and 2,856.28 is: 3,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.55 : 6,873.56 = 2,856.28 : x
  2. Step 2: Convert to fraction form
    4,980.55/6,873.56 = 2,856.28/x
  3. Step 3: Cross multiply
    4,980.55x = 6,873.56 × 2,856.28
  4. Step 4: Simplify right side
    4,980.55x = 19,632,763.31
  5. Step 5: Solve for x
    x = 19,632,763.31/4,980.55
  6. Step 6: Final answer
    x = 3,941.89

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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.