Home / 4,353.78-6,528.50-1,431.58

Finding the Fourth Proportional to 4,353.78, 6,528.50 and 1,431.58

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Solution

The fourth proportional to 4,353.78, 6,528.50 and 1,431.58 is: 2,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,353.78 : 6,528.50 = 1,431.58 : x
  2. Step 2: Convert to fraction form
    4,353.78/6,528.50 = 1,431.58/x
  3. Step 3: Cross multiply
    4,353.78x = 6,528.50 × 1,431.58
  4. Step 4: Simplify right side
    4,353.78x = 9,346,070.03
  5. Step 5: Solve for x
    x = 9,346,070.03/4,353.78
  6. Step 6: Final answer
    x = 2,146.66

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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.