Home / 3,065.85-4,228.99-1,870.27

Finding the Fourth Proportional to 3,065.85, 4,228.99 and 1,870.27

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Solution

The fourth proportional to 3,065.85, 4,228.99 and 1,870.27 is: 2,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.85 : 4,228.99 = 1,870.27 : x
  2. Step 2: Convert to fraction form
    3,065.85/4,228.99 = 1,870.27/x
  3. Step 3: Cross multiply
    3,065.85x = 4,228.99 × 1,870.27
  4. Step 4: Simplify right side
    3,065.85x = 7,909,337.88
  5. Step 5: Solve for x
    x = 7,909,337.88/3,065.85
  6. Step 6: Final answer
    x = 2,579.82

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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.