Home / 5,113.83-7,058.70-3,720.63

Finding the Fourth Proportional to 5,113.83, 7,058.70 and 3,720.63

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Solution

The fourth proportional to 5,113.83, 7,058.70 and 3,720.63 is: 5,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.83 : 7,058.70 = 3,720.63 : x
  2. Step 2: Convert to fraction form
    5,113.83/7,058.70 = 3,720.63/x
  3. Step 3: Cross multiply
    5,113.83x = 7,058.70 × 3,720.63
  4. Step 4: Simplify right side
    5,113.83x = 26,262,837.45
  5. Step 5: Solve for x
    x = 26,262,837.45/5,113.83
  6. Step 6: Final answer
    x = 5,135.65

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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.