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Finding the Fourth Proportional to 5,675.81, 8,515.45 and 2,904.45

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Solution

The fourth proportional to 5,675.81, 8,515.45 and 2,904.45 is: 4,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.81 : 8,515.45 = 2,904.45 : x
  2. Step 2: Convert to fraction form
    5,675.81/8,515.45 = 2,904.45/x
  3. Step 3: Cross multiply
    5,675.81x = 8,515.45 × 2,904.45
  4. Step 4: Simplify right side
    5,675.81x = 24,732,670.20
  5. Step 5: Solve for x
    x = 24,732,670.20/5,675.81
  6. Step 6: Final answer
    x = 4,357.56

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1.5x scale

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.