Home / 5,139.60-7,710.48-3,058.80

Finding the Fourth Proportional to 5,139.60, 7,710.48 and 3,058.80

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Solution

The fourth proportional to 5,139.60, 7,710.48 and 3,058.80 is: 4,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.60 : 7,710.48 = 3,058.80 : x
  2. Step 2: Convert to fraction form
    5,139.60/7,710.48 = 3,058.80/x
  3. Step 3: Cross multiply
    5,139.60x = 7,710.48 × 3,058.80
  4. Step 4: Simplify right side
    5,139.60x = 23,584,816.22
  5. Step 5: Solve for x
    x = 23,584,816.22/5,139.60
  6. Step 6: Final answer
    x = 4,588.84

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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.