Home / 3,870.24-5,341.20-2,214.24

Finding the Fourth Proportional to 3,870.24, 5,341.20 and 2,214.24

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Solution

The fourth proportional to 3,870.24, 5,341.20 and 2,214.24 is: 3,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.24 : 5,341.20 = 2,214.24 : x
  2. Step 2: Convert to fraction form
    3,870.24/5,341.20 = 2,214.24/x
  3. Step 3: Cross multiply
    3,870.24x = 5,341.20 × 2,214.24
  4. Step 4: Simplify right side
    3,870.24x = 11,826,698.69
  5. Step 5: Solve for x
    x = 11,826,698.69/3,870.24
  6. Step 6: Final answer
    x = 3,055.80

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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.