Home / 5,621.77-7,761.09-3,384.19

Finding the Fourth Proportional to 5,621.77, 7,761.09 and 3,384.19

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Solution

The fourth proportional to 5,621.77, 7,761.09 and 3,384.19 is: 4,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.77 : 7,761.09 = 3,384.19 : x
  2. Step 2: Convert to fraction form
    5,621.77/7,761.09 = 3,384.19/x
  3. Step 3: Cross multiply
    5,621.77x = 7,761.09 × 3,384.19
  4. Step 4: Simplify right side
    5,621.77x = 26,265,003.17
  5. Step 5: Solve for x
    x = 26,265,003.17/5,621.77
  6. Step 6: Final answer
    x = 4,672.02

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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.