Home / 2,486.78-3,730.18-1,184.30

Finding the Fourth Proportional to 2,486.78, 3,730.18 and 1,184.30

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Solution

The fourth proportional to 2,486.78, 3,730.18 and 1,184.30 is: 1,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.78 : 3,730.18 = 1,184.30 : x
  2. Step 2: Convert to fraction form
    2,486.78/3,730.18 = 1,184.30/x
  3. Step 3: Cross multiply
    2,486.78x = 3,730.18 × 1,184.30
  4. Step 4: Simplify right side
    2,486.78x = 4,417,658.54
  5. Step 5: Solve for x
    x = 4,417,658.54/2,486.78
  6. Step 6: Final answer
    x = 1,776.46

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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.