Home / 6,430.78-8,874.39-3,598.10

Finding the Fourth Proportional to 6,430.78, 8,874.39 and 3,598.10

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Solution

The fourth proportional to 6,430.78, 8,874.39 and 3,598.10 is: 4,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.78 : 8,874.39 = 3,598.10 : x
  2. Step 2: Convert to fraction form
    6,430.78/8,874.39 = 3,598.10/x
  3. Step 3: Cross multiply
    6,430.78x = 8,874.39 × 3,598.10
  4. Step 4: Simplify right side
    6,430.78x = 31,930,994.98
  5. Step 5: Solve for x
    x = 31,930,994.98/6,430.78
  6. Step 6: Final answer
    x = 4,965.34

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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.