Home / 4,148.56-5,719.96-2,890.72

Finding the Fourth Proportional to 4,148.56, 5,719.96 and 2,890.72

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Solution

The fourth proportional to 4,148.56, 5,719.96 and 2,890.72 is: 3,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.56 : 5,719.96 = 2,890.72 : x
  2. Step 2: Convert to fraction form
    4,148.56/5,719.96 = 2,890.72/x
  3. Step 3: Cross multiply
    4,148.56x = 5,719.96 × 2,890.72
  4. Step 4: Simplify right side
    4,148.56x = 16,534,802.77
  5. Step 5: Solve for x
    x = 16,534,802.77/4,148.56
  6. Step 6: Final answer
    x = 3,985.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.