Home / 5,385.03-7,430.25-3,146.48

Finding the Fourth Proportional to 5,385.03, 7,430.25 and 3,146.48

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Solution

The fourth proportional to 5,385.03, 7,430.25 and 3,146.48 is: 4,341.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.03 : 7,430.25 = 3,146.48 : x
  2. Step 2: Convert to fraction form
    5,385.03/7,430.25 = 3,146.48/x
  3. Step 3: Cross multiply
    5,385.03x = 7,430.25 × 3,146.48
  4. Step 4: Simplify right side
    5,385.03x = 23,379,098.00
  5. Step 5: Solve for x
    x = 23,379,098.00/5,385.03
  6. Step 6: Final answer
    x = 4,341.50

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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.