Home / 3,131.04-4,320.87-1,714.74

Finding the Fourth Proportional to 3,131.04, 4,320.87 and 1,714.74

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Solution

The fourth proportional to 3,131.04, 4,320.87 and 1,714.74 is: 2,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.04 : 4,320.87 = 1,714.74 : x
  2. Step 2: Convert to fraction form
    3,131.04/4,320.87 = 1,714.74/x
  3. Step 3: Cross multiply
    3,131.04x = 4,320.87 × 1,714.74
  4. Step 4: Simplify right side
    3,131.04x = 7,409,168.62
  5. Step 5: Solve for x
    x = 7,409,168.62/3,131.04
  6. Step 6: Final answer
    x = 2,366.36

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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.