Home / 3,130.83-4,320.99-2,014.97

Finding the Fourth Proportional to 3,130.83, 4,320.99 and 2,014.97

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Solution

The fourth proportional to 3,130.83, 4,320.99 and 2,014.97 is: 2,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.83 : 4,320.99 = 2,014.97 : x
  2. Step 2: Convert to fraction form
    3,130.83/4,320.99 = 2,014.97/x
  3. Step 3: Cross multiply
    3,130.83x = 4,320.99 × 2,014.97
  4. Step 4: Simplify right side
    3,130.83x = 8,706,643.62
  5. Step 5: Solve for x
    x = 8,706,643.62/3,130.83
  6. Step 6: Final answer
    x = 2,780.94

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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.