Home / 2,830.60-4,237.53-2,103.40

Finding the Fourth Proportional to 2,830.60, 4,237.53 and 2,103.40

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Solution

The fourth proportional to 2,830.60, 4,237.53 and 2,103.40 is: 3,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.60 : 4,237.53 = 2,103.40 : x
  2. Step 2: Convert to fraction form
    2,830.60/4,237.53 = 2,103.40/x
  3. Step 3: Cross multiply
    2,830.60x = 4,237.53 × 2,103.40
  4. Step 4: Simplify right side
    2,830.60x = 8,913,220.60
  5. Step 5: Solve for x
    x = 8,913,220.60/2,830.60
  6. Step 6: Final answer
    x = 3,148.88

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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.