Home / 7,712.12-11,575.74-3,331.10

Finding the Fourth Proportional to 7,712.12, 11,575.74 and 3,331.10

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Solution

The fourth proportional to 7,712.12, 11,575.74 and 3,331.10 is: 4,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.12 : 11,575.74 = 3,331.10 : x
  2. Step 2: Convert to fraction form
    7,712.12/11,575.74 = 3,331.10/x
  3. Step 3: Cross multiply
    7,712.12x = 11,575.74 × 3,331.10
  4. Step 4: Simplify right side
    7,712.12x = 38,559,947.51
  5. Step 5: Solve for x
    x = 38,559,947.51/7,712.12
  6. Step 6: Final answer
    x = 4,999.92

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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.