Home / 6,405.35-8,838.23-4,728.20

Finding the Fourth Proportional to 6,405.35, 8,838.23 and 4,728.20

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Solution

The fourth proportional to 6,405.35, 8,838.23 and 4,728.20 is: 6,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.35 : 8,838.23 = 4,728.20 : x
  2. Step 2: Convert to fraction form
    6,405.35/8,838.23 = 4,728.20/x
  3. Step 3: Cross multiply
    6,405.35x = 8,838.23 × 4,728.20
  4. Step 4: Simplify right side
    6,405.35x = 41,788,851.25
  5. Step 5: Solve for x
    x = 41,788,851.25/6,405.35
  6. Step 6: Final answer
    x = 6,524.06

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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.