Home / 10,570.42-15,854.43-2,779.84

Finding the Fourth Proportional to 10,570.42, 15,854.43 and 2,779.84

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Solution

The fourth proportional to 10,570.42, 15,854.43 and 2,779.84 is: 4,169.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570.42 : 15,854.43 = 2,779.84 : x
  2. Step 2: Convert to fraction form
    10,570.42/15,854.43 = 2,779.84/x
  3. Step 3: Cross multiply
    10,570.42x = 15,854.43 × 2,779.84
  4. Step 4: Simplify right side
    10,570.42x = 44,072,778.69
  5. Step 5: Solve for x
    x = 44,072,778.69/10,570.42
  6. Step 6: Final answer
    x = 4,169.44

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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.