Home / 2,987.34-4,475.71-1,814.94

Finding the Fourth Proportional to 2,987.34, 4,475.71 and 1,814.94

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Solution

The fourth proportional to 2,987.34, 4,475.71 and 1,814.94 is: 2,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.34 : 4,475.71 = 1,814.94 : x
  2. Step 2: Convert to fraction form
    2,987.34/4,475.71 = 1,814.94/x
  3. Step 3: Cross multiply
    2,987.34x = 4,475.71 × 1,814.94
  4. Step 4: Simplify right side
    2,987.34x = 8,123,145.11
  5. Step 5: Solve for x
    x = 8,123,145.11/2,987.34
  6. Step 6: Final answer
    x = 2,719.19

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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.