Home / 5,384.70-8,077.11-1,686.66

Finding the Fourth Proportional to 5,384.70, 8,077.11 and 1,686.66

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Solution

The fourth proportional to 5,384.70, 8,077.11 and 1,686.66 is: 2,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.70 : 8,077.11 = 1,686.66 : x
  2. Step 2: Convert to fraction form
    5,384.70/8,077.11 = 1,686.66/x
  3. Step 3: Cross multiply
    5,384.70x = 8,077.11 × 1,686.66
  4. Step 4: Simplify right side
    5,384.70x = 13,623,338.35
  5. Step 5: Solve for x
    x = 13,623,338.35/5,384.70
  6. Step 6: Final answer
    x = 2,530.01

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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.