Home / 4,501.28-6,748.64-2,128.52

Finding the Fourth Proportional to 4,501.28, 6,748.64 and 2,128.52

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Solution

The fourth proportional to 4,501.28, 6,748.64 and 2,128.52 is: 3,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,501.28 : 6,748.64 = 2,128.52 : x
  2. Step 2: Convert to fraction form
    4,501.28/6,748.64 = 2,128.52/x
  3. Step 3: Cross multiply
    4,501.28x = 6,748.64 × 2,128.52
  4. Step 4: Simplify right side
    4,501.28x = 14,364,637.41
  5. Step 5: Solve for x
    x = 14,364,637.41/4,501.28
  6. Step 6: Final answer
    x = 3,191.23

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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.