Home / 5,411.13-8,130.87-4,719.53

Finding the Fourth Proportional to 5,411.13, 8,130.87 and 4,719.53

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Solution

The fourth proportional to 5,411.13, 8,130.87 and 4,719.53 is: 7,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.13 : 8,130.87 = 4,719.53 : x
  2. Step 2: Convert to fraction form
    5,411.13/8,130.87 = 4,719.53/x
  3. Step 3: Cross multiply
    5,411.13x = 8,130.87 × 4,719.53
  4. Step 4: Simplify right side
    5,411.13x = 38,373,844.24
  5. Step 5: Solve for x
    x = 38,373,844.24/5,411.13
  6. Step 6: Final answer
    x = 7,091.65

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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.