Home / 3,813.12-5,711.99-2,987.46

Finding the Fourth Proportional to 3,813.12, 5,711.99 and 2,987.46

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Solution

The fourth proportional to 3,813.12, 5,711.99 and 2,987.46 is: 4,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.12 : 5,711.99 = 2,987.46 : x
  2. Step 2: Convert to fraction form
    3,813.12/5,711.99 = 2,987.46/x
  3. Step 3: Cross multiply
    3,813.12x = 5,711.99 × 2,987.46
  4. Step 4: Simplify right side
    3,813.12x = 17,064,326.71
  5. Step 5: Solve for x
    x = 17,064,326.71/3,813.12
  6. Step 6: Final answer
    x = 4,475.16

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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.