Home / 5,388.08-8,080.95-1,689.83

Finding the Fourth Proportional to 5,388.08, 8,080.95 and 1,689.83

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Solution

The fourth proportional to 5,388.08, 8,080.95 and 1,689.83 is: 2,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.08 : 8,080.95 = 1,689.83 : x
  2. Step 2: Convert to fraction form
    5,388.08/8,080.95 = 1,689.83/x
  3. Step 3: Cross multiply
    5,388.08x = 8,080.95 × 1,689.83
  4. Step 4: Simplify right side
    5,388.08x = 13,655,391.33
  5. Step 5: Solve for x
    x = 13,655,391.33/5,388.08
  6. Step 6: Final answer
    x = 2,534.37

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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.