Home / 4,679.10-7,018.58-1,392.21

Finding the Fourth Proportional to 4,679.10, 7,018.58 and 1,392.21

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Solution

The fourth proportional to 4,679.10, 7,018.58 and 1,392.21 is: 2,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.10 : 7,018.58 = 1,392.21 : x
  2. Step 2: Convert to fraction form
    4,679.10/7,018.58 = 1,392.21/x
  3. Step 3: Cross multiply
    4,679.10x = 7,018.58 × 1,392.21
  4. Step 4: Simplify right side
    4,679.10x = 9,771,340.74
  5. Step 5: Solve for x
    x = 9,771,340.74/4,679.10
  6. Step 6: Final answer
    x = 2,088.29

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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.