Home / 6,145.59-9,218.93-1,985.70

Finding the Fourth Proportional to 6,145.59, 9,218.93 and 1,985.70

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Solution

The fourth proportional to 6,145.59, 9,218.93 and 1,985.70 is: 2,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.59 : 9,218.93 = 1,985.70 : x
  2. Step 2: Convert to fraction form
    6,145.59/9,218.93 = 1,985.70/x
  3. Step 3: Cross multiply
    6,145.59x = 9,218.93 × 1,985.70
  4. Step 4: Simplify right side
    6,145.59x = 18,306,029.30
  5. Step 5: Solve for x
    x = 18,306,029.30/6,145.59
  6. Step 6: Final answer
    x = 2,978.73

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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.