Home / 5,178.03-7,143.40-3,498.82

Finding the Fourth Proportional to 5,178.03, 7,143.40 and 3,498.82

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Solution

The fourth proportional to 5,178.03, 7,143.40 and 3,498.82 is: 4,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.03 : 7,143.40 = 3,498.82 : x
  2. Step 2: Convert to fraction form
    5,178.03/7,143.40 = 3,498.82/x
  3. Step 3: Cross multiply
    5,178.03x = 7,143.40 × 3,498.82
  4. Step 4: Simplify right side
    5,178.03x = 24,993,482.31
  5. Step 5: Solve for x
    x = 24,993,482.31/5,178.03
  6. Step 6: Final answer
    x = 4,826.84

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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.