Home / 3,416.20-4,721.88-3,116.32

Finding the Fourth Proportional to 3,416.20, 4,721.88 and 3,116.32

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Solution

The fourth proportional to 3,416.20, 4,721.88 and 3,116.32 is: 4,307.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.20 : 4,721.88 = 3,116.32 : x
  2. Step 2: Convert to fraction form
    3,416.20/4,721.88 = 3,116.32/x
  3. Step 3: Cross multiply
    3,416.20x = 4,721.88 × 3,116.32
  4. Step 4: Simplify right side
    3,416.20x = 14,714,889.08
  5. Step 5: Solve for x
    x = 14,714,889.08/3,416.20
  6. Step 6: Final answer
    x = 4,307.39

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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.