Home / 5,005.12-7,500-1,925.44

Finding the Fourth Proportional to 5,005.12, 7,500 and 1,925.44

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Solution

The fourth proportional to 5,005.12, 7,500 and 1,925.44 is: 2,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.12 : 7,500 = 1,925.44 : x
  2. Step 2: Convert to fraction form
    5,005.12/7,500 = 1,925.44/x
  3. Step 3: Cross multiply
    5,005.12x = 7,500 × 1,925.44
  4. Step 4: Simplify right side
    5,005.12x = 14,440,800
  5. Step 5: Solve for x
    x = 14,440,800/5,005.12
  6. Step 6: Final answer
    x = 2,885.21

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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.