Home / 2,973.60-4,099.20-2,186.40

Finding the Fourth Proportional to 2,973.60, 4,099.20 and 2,186.40

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Solution

The fourth proportional to 2,973.60, 4,099.20 and 2,186.40 is: 3,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.60 : 4,099.20 = 2,186.40 : x
  2. Step 2: Convert to fraction form
    2,973.60/4,099.20 = 2,186.40/x
  3. Step 3: Cross multiply
    2,973.60x = 4,099.20 × 2,186.40
  4. Step 4: Simplify right side
    2,973.60x = 8,962,490.88
  5. Step 5: Solve for x
    x = 8,962,490.88/2,973.60
  6. Step 6: Final answer
    x = 3,014.02

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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.