Home / 2,829.79-3,905.16-1,570.87

Finding the Fourth Proportional to 2,829.79, 3,905.16 and 1,570.87

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Solution

The fourth proportional to 2,829.79, 3,905.16 and 1,570.87 is: 2,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.79 : 3,905.16 = 1,570.87 : x
  2. Step 2: Convert to fraction form
    2,829.79/3,905.16 = 1,570.87/x
  3. Step 3: Cross multiply
    2,829.79x = 3,905.16 × 1,570.87
  4. Step 4: Simplify right side
    2,829.79x = 6,134,498.69
  5. Step 5: Solve for x
    x = 6,134,498.69/2,829.79
  6. Step 6: Final answer
    x = 2,167.83

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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.