Home / 5,419.86-8,127.02-2,495.63

Finding the Fourth Proportional to 5,419.86, 8,127.02 and 2,495.63

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Solution

The fourth proportional to 5,419.86, 8,127.02 and 2,495.63 is: 3,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.86 : 8,127.02 = 2,495.63 : x
  2. Step 2: Convert to fraction form
    5,419.86/8,127.02 = 2,495.63/x
  3. Step 3: Cross multiply
    5,419.86x = 8,127.02 × 2,495.63
  4. Step 4: Simplify right side
    5,419.86x = 20,281,981.81
  5. Step 5: Solve for x
    x = 20,281,981.81/5,419.86
  6. Step 6: Final answer
    x = 3,742.16

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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.