Home / 2,867.05-3,957.11-1,860.13

Finding the Fourth Proportional to 2,867.05, 3,957.11 and 1,860.13

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Solution

The fourth proportional to 2,867.05, 3,957.11 and 1,860.13 is: 2,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.05 : 3,957.11 = 1,860.13 : x
  2. Step 2: Convert to fraction form
    2,867.05/3,957.11 = 1,860.13/x
  3. Step 3: Cross multiply
    2,867.05x = 3,957.11 × 1,860.13
  4. Step 4: Simplify right side
    2,867.05x = 7,360,739.02
  5. Step 5: Solve for x
    x = 7,360,739.02/2,867.05
  6. Step 6: Final answer
    x = 2,567.36

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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.