Home / 5,005.90-7,509.91-1,885.84

Finding the Fourth Proportional to 5,005.90, 7,509.91 and 1,885.84

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Solution

The fourth proportional to 5,005.90, 7,509.91 and 1,885.84 is: 2,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.90 : 7,509.91 = 1,885.84 : x
  2. Step 2: Convert to fraction form
    5,005.90/7,509.91 = 1,885.84/x
  3. Step 3: Cross multiply
    5,005.90x = 7,509.91 × 1,885.84
  4. Step 4: Simplify right side
    5,005.90x = 14,162,481.60
  5. Step 5: Solve for x
    x = 14,162,481.60/5,005.90
  6. Step 6: Final answer
    x = 2,829.16

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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.