Home / 4,715.36-7,073.12-1,428.48

Finding the Fourth Proportional to 4,715.36, 7,073.12 and 1,428.48

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Solution

The fourth proportional to 4,715.36, 7,073.12 and 1,428.48 is: 2,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.36 : 7,073.12 = 1,428.48 : x
  2. Step 2: Convert to fraction form
    4,715.36/7,073.12 = 1,428.48/x
  3. Step 3: Cross multiply
    4,715.36x = 7,073.12 × 1,428.48
  4. Step 4: Simplify right side
    4,715.36x = 10,103,810.46
  5. Step 5: Solve for x
    x = 10,103,810.46/4,715.36
  6. Step 6: Final answer
    x = 2,142.74

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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.