Home / 3,714.45-5,124.78-2,385.78

Finding the Fourth Proportional to 3,714.45, 5,124.78 and 2,385.78

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Solution

The fourth proportional to 3,714.45, 5,124.78 and 2,385.78 is: 3,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.45 : 5,124.78 = 2,385.78 : x
  2. Step 2: Convert to fraction form
    3,714.45/5,124.78 = 2,385.78/x
  3. Step 3: Cross multiply
    3,714.45x = 5,124.78 × 2,385.78
  4. Step 4: Simplify right side
    3,714.45x = 12,226,597.63
  5. Step 5: Solve for x
    x = 12,226,597.63/3,714.45
  6. Step 6: Final answer
    x = 3,291.63

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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.