Home / 3,087.40-4,260.61-1,671.08

Finding the Fourth Proportional to 3,087.40, 4,260.61 and 1,671.08

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Solution

The fourth proportional to 3,087.40, 4,260.61 and 1,671.08 is: 2,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.40 : 4,260.61 = 1,671.08 : x
  2. Step 2: Convert to fraction form
    3,087.40/4,260.61 = 1,671.08/x
  3. Step 3: Cross multiply
    3,087.40x = 4,260.61 × 1,671.08
  4. Step 4: Simplify right side
    3,087.40x = 7,119,820.21
  5. Step 5: Solve for x
    x = 7,119,820.21/3,087.40
  6. Step 6: Final answer
    x = 2,306.09

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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.