Home / 1,058.17-1,587.35-620.08

Finding the Fourth Proportional to 1,058.17, 1,587.35 and 620.08

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Solution

The fourth proportional to 1,058.17, 1,587.35 and 620.08 is: 930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.17 : 1,587.35 = 620.08 : x
  2. Step 2: Convert to fraction form
    1,058.17/1,587.35 = 620.08/x
  3. Step 3: Cross multiply
    1,058.17x = 1,587.35 × 620.08
  4. Step 4: Simplify right side
    1,058.17x = 984,281.57
  5. Step 5: Solve for x
    x = 984,281.57/1,058.17
  6. Step 6: Final answer
    x = 930.18

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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.