Home / 3,137.04-4,705.56-1,085.20

Finding the Fourth Proportional to 3,137.04, 4,705.56 and 1,085.20

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Solution

The fourth proportional to 3,137.04, 4,705.56 and 1,085.20 is: 1,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.04 : 4,705.56 = 1,085.20 : x
  2. Step 2: Convert to fraction form
    3,137.04/4,705.56 = 1,085.20/x
  3. Step 3: Cross multiply
    3,137.04x = 4,705.56 × 1,085.20
  4. Step 4: Simplify right side
    3,137.04x = 5,106,473.71
  5. Step 5: Solve for x
    x = 5,106,473.71/3,137.04
  6. Step 6: Final answer
    x = 1,627.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.