Home / 5,666.31-7,820.25-3,428.28

Finding the Fourth Proportional to 5,666.31, 7,820.25 and 3,428.28

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Solution

The fourth proportional to 5,666.31, 7,820.25 and 3,428.28 is: 4,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.31 : 7,820.25 = 3,428.28 : x
  2. Step 2: Convert to fraction form
    5,666.31/7,820.25 = 3,428.28/x
  3. Step 3: Cross multiply
    5,666.31x = 7,820.25 × 3,428.28
  4. Step 4: Simplify right side
    5,666.31x = 26,810,006.67
  5. Step 5: Solve for x
    x = 26,810,006.67/5,666.31
  6. Step 6: Final answer
    x = 4,731.48

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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.