Home / 6,421.55-8,847.90-4,322.03

Finding the Fourth Proportional to 6,421.55, 8,847.90 and 4,322.03

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Solution

The fourth proportional to 6,421.55, 8,847.90 and 4,322.03 is: 5,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.55 : 8,847.90 = 4,322.03 : x
  2. Step 2: Convert to fraction form
    6,421.55/8,847.90 = 4,322.03/x
  3. Step 3: Cross multiply
    6,421.55x = 8,847.90 × 4,322.03
  4. Step 4: Simplify right side
    6,421.55x = 38,240,845.00
  5. Step 5: Solve for x
    x = 38,240,845.00/6,421.55
  6. Step 6: Final answer
    x = 5,955.08

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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.