Home / 7,657.70-11,490.33-3,712.28

Finding the Fourth Proportional to 7,657.70, 11,490.33 and 3,712.28

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Solution

The fourth proportional to 7,657.70, 11,490.33 and 3,712.28 is: 5,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,657.70 : 11,490.33 = 3,712.28 : x
  2. Step 2: Convert to fraction form
    7,657.70/11,490.33 = 3,712.28/x
  3. Step 3: Cross multiply
    7,657.70x = 11,490.33 × 3,712.28
  4. Step 4: Simplify right side
    7,657.70x = 42,655,284.25
  5. Step 5: Solve for x
    x = 42,655,284.25/7,657.70
  6. Step 6: Final answer
    x = 5,570.25

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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.