Home / 5,239.69-7,860.63-1,541.61

Finding the Fourth Proportional to 5,239.69, 7,860.63 and 1,541.61

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Solution

The fourth proportional to 5,239.69, 7,860.63 and 1,541.61 is: 2,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.69 : 7,860.63 = 1,541.61 : x
  2. Step 2: Convert to fraction form
    5,239.69/7,860.63 = 1,541.61/x
  3. Step 3: Cross multiply
    5,239.69x = 7,860.63 × 1,541.61
  4. Step 4: Simplify right side
    5,239.69x = 12,118,025.81
  5. Step 5: Solve for x
    x = 12,118,025.81/5,239.69
  6. Step 6: Final answer
    x = 2,312.74

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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.