Home / 5,439.68-8,160-1,544.16

Finding the Fourth Proportional to 5,439.68, 8,160 and 1,544.16

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Solution

The fourth proportional to 5,439.68, 8,160 and 1,544.16 is: 2,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.68 : 8,160 = 1,544.16 : x
  2. Step 2: Convert to fraction form
    5,439.68/8,160 = 1,544.16/x
  3. Step 3: Cross multiply
    5,439.68x = 8,160 × 1,544.16
  4. Step 4: Simplify right side
    5,439.68x = 12,600,345.60
  5. Step 5: Solve for x
    x = 12,600,345.60/5,439.68
  6. Step 6: Final answer
    x = 2,316.38

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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.