Home / 1,084.10-1,626.31-353.50

Finding the Fourth Proportional to 1,084.10, 1,626.31 and 353.50

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Solution

The fourth proportional to 1,084.10, 1,626.31 and 353.50 is: 530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.10 : 1,626.31 = 353.50 : x
  2. Step 2: Convert to fraction form
    1,084.10/1,626.31 = 353.50/x
  3. Step 3: Cross multiply
    1,084.10x = 1,626.31 × 353.50
  4. Step 4: Simplify right side
    1,084.10x = 574,903.06
  5. Step 5: Solve for x
    x = 574,903.06/1,084.10
  6. Step 6: Final answer
    x = 530.31

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Double scale
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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.