Home / 2,813.56-4,220.03-1,058.20

Finding the Fourth Proportional to 2,813.56, 4,220.03 and 1,058.20

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Solution

The fourth proportional to 2,813.56, 4,220.03 and 1,058.20 is: 1,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.56 : 4,220.03 = 1,058.20 : x
  2. Step 2: Convert to fraction form
    2,813.56/4,220.03 = 1,058.20/x
  3. Step 3: Cross multiply
    2,813.56x = 4,220.03 × 1,058.20
  4. Step 4: Simplify right side
    2,813.56x = 4,465,627.84
  5. Step 5: Solve for x
    x = 4,465,627.84/2,813.56
  6. Step 6: Final answer
    x = 1,587.18

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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.