Home / 4,057.90-6,078.65-3,130.25

Finding the Fourth Proportional to 4,057.90, 6,078.65 and 3,130.25

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Solution

The fourth proportional to 4,057.90, 6,078.65 and 3,130.25 is: 4,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,057.90 : 6,078.65 = 3,130.25 : x
  2. Step 2: Convert to fraction form
    4,057.90/6,078.65 = 3,130.25/x
  3. Step 3: Cross multiply
    4,057.90x = 6,078.65 × 3,130.25
  4. Step 4: Simplify right side
    4,057.90x = 19,027,648.12
  5. Step 5: Solve for x
    x = 19,027,648.12/4,057.90
  6. Step 6: Final answer
    x = 4,689.04

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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.