Home / 3,860.96-5,328.65-2,864.66

Finding the Fourth Proportional to 3,860.96, 5,328.65 and 2,864.66

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Solution

The fourth proportional to 3,860.96, 5,328.65 and 2,864.66 is: 3,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.96 : 5,328.65 = 2,864.66 : x
  2. Step 2: Convert to fraction form
    3,860.96/5,328.65 = 2,864.66/x
  3. Step 3: Cross multiply
    3,860.96x = 5,328.65 × 2,864.66
  4. Step 4: Simplify right side
    3,860.96x = 15,264,751.03
  5. Step 5: Solve for x
    x = 15,264,751.03/3,860.96
  6. Step 6: Final answer
    x = 3,953.62

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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.