Home / 5,666.45-7,820.19-3,148.51

Finding the Fourth Proportional to 5,666.45, 7,820.19 and 3,148.51

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Solution

The fourth proportional to 5,666.45, 7,820.19 and 3,148.51 is: 4,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.45 : 7,820.19 = 3,148.51 : x
  2. Step 2: Convert to fraction form
    5,666.45/7,820.19 = 3,148.51/x
  3. Step 3: Cross multiply
    5,666.45x = 7,820.19 × 3,148.51
  4. Step 4: Simplify right side
    5,666.45x = 24,621,930.67
  5. Step 5: Solve for x
    x = 24,621,930.67/5,666.45
  6. Step 6: Final answer
    x = 4,345.22

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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.