Home / 2,987.79-4,477.58-1,523.86

Finding the Fourth Proportional to 2,987.79, 4,477.58 and 1,523.86

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Solution

The fourth proportional to 2,987.79, 4,477.58 and 1,523.86 is: 2,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.79 : 4,477.58 = 1,523.86 : x
  2. Step 2: Convert to fraction form
    2,987.79/4,477.58 = 1,523.86/x
  3. Step 3: Cross multiply
    2,987.79x = 4,477.58 × 1,523.86
  4. Step 4: Simplify right side
    2,987.79x = 6,823,217.15
  5. Step 5: Solve for x
    x = 6,823,217.15/2,987.79
  6. Step 6: Final answer
    x = 2,283.70

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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.