Home / 7,385.45-10,189.31-4,734.32

Finding the Fourth Proportional to 7,385.45, 10,189.31 and 4,734.32

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Solution

The fourth proportional to 7,385.45, 10,189.31 and 4,734.32 is: 6,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.45 : 10,189.31 = 4,734.32 : x
  2. Step 2: Convert to fraction form
    7,385.45/10,189.31 = 4,734.32/x
  3. Step 3: Cross multiply
    7,385.45x = 10,189.31 × 4,734.32
  4. Step 4: Simplify right side
    7,385.45x = 48,239,379.50
  5. Step 5: Solve for x
    x = 48,239,379.50/7,385.45
  6. Step 6: Final answer
    x = 6,531.68

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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.