Home / 4,078.80-5,630.67-3,070.89

Finding the Fourth Proportional to 4,078.80, 5,630.67 and 3,070.89

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Solution

The fourth proportional to 4,078.80, 5,630.67 and 3,070.89 is: 4,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.80 : 5,630.67 = 3,070.89 : x
  2. Step 2: Convert to fraction form
    4,078.80/5,630.67 = 3,070.89/x
  3. Step 3: Cross multiply
    4,078.80x = 5,630.67 × 3,070.89
  4. Step 4: Simplify right side
    4,078.80x = 17,291,168.20
  5. Step 5: Solve for x
    x = 17,291,168.20/4,078.80
  6. Step 6: Final answer
    x = 4,239.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.