Home / 3,506.63-5,256.30-1,428.08

Finding the Fourth Proportional to 3,506.63, 5,256.30 and 1,428.08

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Solution

The fourth proportional to 3,506.63, 5,256.30 and 1,428.08 is: 2,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.63 : 5,256.30 = 1,428.08 : x
  2. Step 2: Convert to fraction form
    3,506.63/5,256.30 = 1,428.08/x
  3. Step 3: Cross multiply
    3,506.63x = 5,256.30 × 1,428.08
  4. Step 4: Simplify right side
    3,506.63x = 7,506,390.62
  5. Step 5: Solve for x
    x = 7,506,390.62/3,506.63
  6. Step 6: Final answer
    x = 2,140.63

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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.