Home / 4,989.28-7,485.12-1,526.56

Finding the Fourth Proportional to 4,989.28, 7,485.12 and 1,526.56

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Solution

The fourth proportional to 4,989.28, 7,485.12 and 1,526.56 is: 2,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.28 : 7,485.12 = 1,526.56 : x
  2. Step 2: Convert to fraction form
    4,989.28/7,485.12 = 1,526.56/x
  3. Step 3: Cross multiply
    4,989.28x = 7,485.12 × 1,526.56
  4. Step 4: Simplify right side
    4,989.28x = 11,426,484.79
  5. Step 5: Solve for x
    x = 11,426,484.79/4,989.28
  6. Step 6: Final answer
    x = 2,290.21

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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.