Home / 5,285.28-7,293.60-2,927.40

Finding the Fourth Proportional to 5,285.28, 7,293.60 and 2,927.40

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Solution

The fourth proportional to 5,285.28, 7,293.60 and 2,927.40 is: 4,039.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.28 : 7,293.60 = 2,927.40 : x
  2. Step 2: Convert to fraction form
    5,285.28/7,293.60 = 2,927.40/x
  3. Step 3: Cross multiply
    5,285.28x = 7,293.60 × 2,927.40
  4. Step 4: Simplify right side
    5,285.28x = 21,351,284.64
  5. Step 5: Solve for x
    x = 21,351,284.64/5,285.28
  6. Step 6: Final answer
    x = 4,039.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.