Home / 5,051.40-7,575.18-2,128.92

Finding the Fourth Proportional to 5,051.40, 7,575.18 and 2,128.92

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Solution

The fourth proportional to 5,051.40, 7,575.18 and 2,128.92 is: 3,192.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,051.40 : 7,575.18 = 2,128.92 : x
  2. Step 2: Convert to fraction form
    5,051.40/7,575.18 = 2,128.92/x
  3. Step 3: Cross multiply
    5,051.40x = 7,575.18 × 2,128.92
  4. Step 4: Simplify right side
    5,051.40x = 16,126,952.21
  5. Step 5: Solve for x
    x = 16,126,952.21/5,051.40
  6. Step 6: Final answer
    x = 3,192.57

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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.