Home / 2,319.14-3,478.72-587.78

Finding the Fourth Proportional to 2,319.14, 3,478.72 and 587.78

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Solution

The fourth proportional to 2,319.14, 3,478.72 and 587.78 is: 881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.14 : 3,478.72 = 587.78 : x
  2. Step 2: Convert to fraction form
    2,319.14/3,478.72 = 587.78/x
  3. Step 3: Cross multiply
    2,319.14x = 3,478.72 × 587.78
  4. Step 4: Simplify right side
    2,319.14x = 2,044,722.04
  5. Step 5: Solve for x
    x = 2,044,722.04/2,319.14
  6. Step 6: Final answer
    x = 881.67

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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.