Home / 7,714.50-10,646.07-4,177.72

Finding the Fourth Proportional to 7,714.50, 10,646.07 and 4,177.72

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Solution

The fourth proportional to 7,714.50, 10,646.07 and 4,177.72 is: 5,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.50 : 10,646.07 = 4,177.72 : x
  2. Step 2: Convert to fraction form
    7,714.50/10,646.07 = 4,177.72/x
  3. Step 3: Cross multiply
    7,714.50x = 10,646.07 × 4,177.72
  4. Step 4: Simplify right side
    7,714.50x = 44,476,225.44
  5. Step 5: Solve for x
    x = 44,476,225.44/7,714.50
  6. Step 6: Final answer
    x = 5,765.28

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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.