Home / 7,841.48-10,821.72-4,485.32

Finding the Fourth Proportional to 7,841.48, 10,821.72 and 4,485.32

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Solution

The fourth proportional to 7,841.48, 10,821.72 and 4,485.32 is: 6,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.48 : 10,821.72 = 4,485.32 : x
  2. Step 2: Convert to fraction form
    7,841.48/10,821.72 = 4,485.32/x
  3. Step 3: Cross multiply
    7,841.48x = 10,821.72 × 4,485.32
  4. Step 4: Simplify right side
    7,841.48x = 48,538,877.15
  5. Step 5: Solve for x
    x = 48,538,877.15/7,841.48
  6. Step 6: Final answer
    x = 6,190.01

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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.