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Finding the Fourth Proportional to 2,356, 3,533.88 and 712.54

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Solution

The fourth proportional to 2,356, 3,533.88 and 712.54 is: 1,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356 : 3,533.88 = 712.54 : x
  2. Step 2: Convert to fraction form
    2,356/3,533.88 = 712.54/x
  3. Step 3: Cross multiply
    2,356x = 3,533.88 × 712.54
  4. Step 4: Simplify right side
    2,356x = 2,518,030.86
  5. Step 5: Solve for x
    x = 2,518,030.86/2,356
  6. Step 6: Final answer
    x = 1,068.77

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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.