Home / 1,051.20-1,450.68-579.10

Finding the Fourth Proportional to 1,051.20, 1,450.68 and 579.10

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Solution

The fourth proportional to 1,051.20, 1,450.68 and 579.10 is: 799.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.20 : 1,450.68 = 579.10 : x
  2. Step 2: Convert to fraction form
    1,051.20/1,450.68 = 579.10/x
  3. Step 3: Cross multiply
    1,051.20x = 1,450.68 × 579.10
  4. Step 4: Simplify right side
    1,051.20x = 840,088.79
  5. Step 5: Solve for x
    x = 840,088.79/1,051.20
  6. Step 6: Final answer
    x = 799.17

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Double scale
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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.