Home / 7,961.25-10,987.20-4,605.02

Finding the Fourth Proportional to 7,961.25, 10,987.20 and 4,605.02

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Solution

The fourth proportional to 7,961.25, 10,987.20 and 4,605.02 is: 6,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.25 : 10,987.20 = 4,605.02 : x
  2. Step 2: Convert to fraction form
    7,961.25/10,987.20 = 4,605.02/x
  3. Step 3: Cross multiply
    7,961.25x = 10,987.20 × 4,605.02
  4. Step 4: Simplify right side
    7,961.25x = 50,596,220.81
  5. Step 5: Solve for x
    x = 50,596,220.81/7,961.25
  6. Step 6: Final answer
    x = 6,355.31

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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.