Home / 2,387.41-3,581.28-999.35

Finding the Fourth Proportional to 2,387.41, 3,581.28 and 999.35

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Solution

The fourth proportional to 2,387.41, 3,581.28 and 999.35 is: 1,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.41 : 3,581.28 = 999.35 : x
  2. Step 2: Convert to fraction form
    2,387.41/3,581.28 = 999.35/x
  3. Step 3: Cross multiply
    2,387.41x = 3,581.28 × 999.35
  4. Step 4: Simplify right side
    2,387.41x = 3,578,934.26
  5. Step 5: Solve for x
    x = 3,578,934.26/2,387.41
  6. Step 6: Final answer
    x = 1,499.09

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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.