Home / 2,955.60-4,429.80-2,185.20

Finding the Fourth Proportional to 2,955.60, 4,429.80 and 2,185.20

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Solution

The fourth proportional to 2,955.60, 4,429.80 and 2,185.20 is: 3,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.60 : 4,429.80 = 2,185.20 : x
  2. Step 2: Convert to fraction form
    2,955.60/4,429.80 = 2,185.20/x
  3. Step 3: Cross multiply
    2,955.60x = 4,429.80 × 2,185.20
  4. Step 4: Simplify right side
    2,955.60x = 9,679,998.96
  5. Step 5: Solve for x
    x = 9,679,998.96/2,955.60
  6. Step 6: Final answer
    x = 3,275.14

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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.