Home / 6,439.12-8,887.50-4,197.08

Finding the Fourth Proportional to 6,439.12, 8,887.50 and 4,197.08

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Solution

The fourth proportional to 6,439.12, 8,887.50 and 4,197.08 is: 5,792.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.12 : 8,887.50 = 4,197.08 : x
  2. Step 2: Convert to fraction form
    6,439.12/8,887.50 = 4,197.08/x
  3. Step 3: Cross multiply
    6,439.12x = 8,887.50 × 4,197.08
  4. Step 4: Simplify right side
    6,439.12x = 37,301,570.72
  5. Step 5: Solve for x
    x = 37,301,570.72/6,439.12
  6. Step 6: Final answer
    x = 5,792.96

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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.