Home / 3,128.04-4,690.74-937.08

Finding the Fourth Proportional to 3,128.04, 4,690.74 and 937.08

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Solution

The fourth proportional to 3,128.04, 4,690.74 and 937.08 is: 1,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.04 : 4,690.74 = 937.08 : x
  2. Step 2: Convert to fraction form
    3,128.04/4,690.74 = 937.08/x
  3. Step 3: Cross multiply
    3,128.04x = 4,690.74 × 937.08
  4. Step 4: Simplify right side
    3,128.04x = 4,395,598.64
  5. Step 5: Solve for x
    x = 4,395,598.64/3,128.04
  6. Step 6: Final answer
    x = 1,405.22

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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.