Home / 5,155.04-7,112.33-3,029.90

Finding the Fourth Proportional to 5,155.04, 7,112.33 and 3,029.90

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Solution

The fourth proportional to 5,155.04, 7,112.33 and 3,029.90 is: 4,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.04 : 7,112.33 = 3,029.90 : x
  2. Step 2: Convert to fraction form
    5,155.04/7,112.33 = 3,029.90/x
  3. Step 3: Cross multiply
    5,155.04x = 7,112.33 × 3,029.90
  4. Step 4: Simplify right side
    5,155.04x = 21,549,637.84
  5. Step 5: Solve for x
    x = 21,549,637.84/5,155.04
  6. Step 6: Final answer
    x = 4,180.30

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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.