Home / 4,320.95-5,954.59-3,140.15

Finding the Fourth Proportional to 4,320.95, 5,954.59 and 3,140.15

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Solution

The fourth proportional to 4,320.95, 5,954.59 and 3,140.15 is: 4,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.95 : 5,954.59 = 3,140.15 : x
  2. Step 2: Convert to fraction form
    4,320.95/5,954.59 = 3,140.15/x
  3. Step 3: Cross multiply
    4,320.95x = 5,954.59 × 3,140.15
  4. Step 4: Simplify right side
    4,320.95x = 18,698,305.79
  5. Step 5: Solve for x
    x = 18,698,305.79/4,320.95
  6. Step 6: Final answer
    x = 4,327.36

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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.