Home / 7,117.28-10,677.48-2,187.29

Finding the Fourth Proportional to 7,117.28, 10,677.48 and 2,187.29

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Solution

The fourth proportional to 7,117.28, 10,677.48 and 2,187.29 is: 3,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.28 : 10,677.48 = 2,187.29 : x
  2. Step 2: Convert to fraction form
    7,117.28/10,677.48 = 2,187.29/x
  3. Step 3: Cross multiply
    7,117.28x = 10,677.48 × 2,187.29
  4. Step 4: Simplify right side
    7,117.28x = 23,354,745.23
  5. Step 5: Solve for x
    x = 23,354,745.23/7,117.28
  6. Step 6: Final answer
    x = 3,281.41

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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.