Home / 6,090.15-9,135.70-1,930.40

Finding the Fourth Proportional to 6,090.15, 9,135.70 and 1,930.40

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Solution

The fourth proportional to 6,090.15, 9,135.70 and 1,930.40 is: 2,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.15 : 9,135.70 = 1,930.40 : x
  2. Step 2: Convert to fraction form
    6,090.15/9,135.70 = 1,930.40/x
  3. Step 3: Cross multiply
    6,090.15x = 9,135.70 × 1,930.40
  4. Step 4: Simplify right side
    6,090.15x = 17,635,549.89
  5. Step 5: Solve for x
    x = 17,635,549.89/6,090.15
  6. Step 6: Final answer
    x = 2,895.75

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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.