Home / 1,355.22-2,032.41-705.60

Finding the Fourth Proportional to 1,355.22, 2,032.41 and 705.60

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Solution

The fourth proportional to 1,355.22, 2,032.41 and 705.60 is: 1,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.22 : 2,032.41 = 705.60 : x
  2. Step 2: Convert to fraction form
    1,355.22/2,032.41 = 705.60/x
  3. Step 3: Cross multiply
    1,355.22x = 2,032.41 × 705.60
  4. Step 4: Simplify right side
    1,355.22x = 1,434,068.50
  5. Step 5: Solve for x
    x = 1,434,068.50/1,355.22
  6. Step 6: Final answer
    x = 1,058.18

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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.