Home / 6,420.46-8,855.48-4,060.32

Finding the Fourth Proportional to 6,420.46, 8,855.48 and 4,060.32

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Solution

The fourth proportional to 6,420.46, 8,855.48 and 4,060.32 is: 5,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.46 : 8,855.48 = 4,060.32 : x
  2. Step 2: Convert to fraction form
    6,420.46/8,855.48 = 4,060.32/x
  3. Step 3: Cross multiply
    6,420.46x = 8,855.48 × 4,060.32
  4. Step 4: Simplify right side
    6,420.46x = 35,956,082.55
  5. Step 5: Solve for x
    x = 35,956,082.55/6,420.46
  6. Step 6: Final answer
    x = 5,600.23

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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.