Home / 2,829.79-3,905.20-1,570.94

Finding the Fourth Proportional to 2,829.79, 3,905.20 and 1,570.94

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Solution

The fourth proportional to 2,829.79, 3,905.20 and 1,570.94 is: 2,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.79 : 3,905.20 = 1,570.94 : x
  2. Step 2: Convert to fraction form
    2,829.79/3,905.20 = 1,570.94/x
  3. Step 3: Cross multiply
    2,829.79x = 3,905.20 × 1,570.94
  4. Step 4: Simplify right side
    2,829.79x = 6,134,834.89
  5. Step 5: Solve for x
    x = 6,134,834.89/2,829.79
  6. Step 6: Final answer
    x = 2,167.95

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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.