Home / 3,390.12-5,087.14-1,830.13

Finding the Fourth Proportional to 3,390.12, 5,087.14 and 1,830.13

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Solution

The fourth proportional to 3,390.12, 5,087.14 and 1,830.13 is: 2,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.12 : 5,087.14 = 1,830.13 : x
  2. Step 2: Convert to fraction form
    3,390.12/5,087.14 = 1,830.13/x
  3. Step 3: Cross multiply
    3,390.12x = 5,087.14 × 1,830.13
  4. Step 4: Simplify right side
    3,390.12x = 9,310,110.24
  5. Step 5: Solve for x
    x = 9,310,110.24/3,390.12
  6. Step 6: Final answer
    x = 2,746.25

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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.