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Finding the Fourth Proportional to 7,041.58, 9,717.60 and 3,898.06

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Solution

The fourth proportional to 7,041.58, 9,717.60 and 3,898.06 is: 5,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.58 : 9,717.60 = 3,898.06 : x
  2. Step 2: Convert to fraction form
    7,041.58/9,717.60 = 3,898.06/x
  3. Step 3: Cross multiply
    7,041.58x = 9,717.60 × 3,898.06
  4. Step 4: Simplify right side
    7,041.58x = 37,879,787.86
  5. Step 5: Solve for x
    x = 37,879,787.86/7,041.58
  6. Step 6: Final answer
    x = 5,379.44

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1.5x scale

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.