Home / 2,829.29-3,904.31-1,570.40

Finding the Fourth Proportional to 2,829.29, 3,904.31 and 1,570.40

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Solution

The fourth proportional to 2,829.29, 3,904.31 and 1,570.40 is: 2,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.29 : 3,904.31 = 1,570.40 : x
  2. Step 2: Convert to fraction form
    2,829.29/3,904.31 = 1,570.40/x
  3. Step 3: Cross multiply
    2,829.29x = 3,904.31 × 1,570.40
  4. Step 4: Simplify right side
    2,829.29x = 6,131,328.42
  5. Step 5: Solve for x
    x = 6,131,328.42/2,829.29
  6. Step 6: Final answer
    x = 2,167.09

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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.