Home / 7,714.77-10,646.38-4,177.98

Finding the Fourth Proportional to 7,714.77, 10,646.38 and 4,177.98

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Solution

The fourth proportional to 7,714.77, 10,646.38 and 4,177.98 is: 5,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.77 : 10,646.38 = 4,177.98 : x
  2. Step 2: Convert to fraction form
    7,714.77/10,646.38 = 4,177.98/x
  3. Step 3: Cross multiply
    7,714.77x = 10,646.38 × 4,177.98
  4. Step 4: Simplify right side
    7,714.77x = 44,480,362.71
  5. Step 5: Solve for x
    x = 44,480,362.71/7,714.77
  6. Step 6: Final answer
    x = 5,765.61

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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.