Home / 5,385.52-8,078.27-1,688.03

Finding the Fourth Proportional to 5,385.52, 8,078.27 and 1,688.03

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Solution

The fourth proportional to 5,385.52, 8,078.27 and 1,688.03 is: 2,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.52 : 8,078.27 = 1,688.03 : x
  2. Step 2: Convert to fraction form
    5,385.52/8,078.27 = 1,688.03/x
  3. Step 3: Cross multiply
    5,385.52x = 8,078.27 × 1,688.03
  4. Step 4: Simplify right side
    5,385.52x = 13,636,353.67
  5. Step 5: Solve for x
    x = 13,636,353.67/5,385.52
  6. Step 6: Final answer
    x = 2,532.04

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1.5x scale

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.