Home / 5,001.20-7,501.80-4,077.80

Finding the Fourth Proportional to 5,001.20, 7,501.80 and 4,077.80

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Solution

The fourth proportional to 5,001.20, 7,501.80 and 4,077.80 is: 6,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,001.20 : 7,501.80 = 4,077.80 : x
  2. Step 2: Convert to fraction form
    5,001.20/7,501.80 = 4,077.80/x
  3. Step 3: Cross multiply
    5,001.20x = 7,501.80 × 4,077.80
  4. Step 4: Simplify right side
    5,001.20x = 30,590,840.04
  5. Step 5: Solve for x
    x = 30,590,840.04/5,001.20
  6. Step 6: Final answer
    x = 6,116.70

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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.