Home / 6,279.08-8,666.34-4,154.72

Finding the Fourth Proportional to 6,279.08, 8,666.34 and 4,154.72

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Solution

The fourth proportional to 6,279.08, 8,666.34 and 4,154.72 is: 5,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.08 : 8,666.34 = 4,154.72 : x
  2. Step 2: Convert to fraction form
    6,279.08/8,666.34 = 4,154.72/x
  3. Step 3: Cross multiply
    6,279.08x = 8,666.34 × 4,154.72
  4. Step 4: Simplify right side
    6,279.08x = 36,006,216.12
  5. Step 5: Solve for x
    x = 36,006,216.12/6,279.08
  6. Step 6: Final answer
    x = 5,734.31

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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.