Home / 6,279.07-8,655.87-4,784.40

Finding the Fourth Proportional to 6,279.07, 8,655.87 and 4,784.40

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Solution

The fourth proportional to 6,279.07, 8,655.87 and 4,784.40 is: 6,595.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.07 : 8,655.87 = 4,784.40 : x
  2. Step 2: Convert to fraction form
    6,279.07/8,655.87 = 4,784.40/x
  3. Step 3: Cross multiply
    6,279.07x = 8,655.87 × 4,784.40
  4. Step 4: Simplify right side
    6,279.07x = 41,413,144.43
  5. Step 5: Solve for x
    x = 41,413,144.43/6,279.07
  6. Step 6: Final answer
    x = 6,595.43

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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.