Home / 3,140.47-4,329.61-2,607.45

Finding the Fourth Proportional to 3,140.47, 4,329.61 and 2,607.45

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Solution

The fourth proportional to 3,140.47, 4,329.61 and 2,607.45 is: 3,594.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.47 : 4,329.61 = 2,607.45 : x
  2. Step 2: Convert to fraction form
    3,140.47/4,329.61 = 2,607.45/x
  3. Step 3: Cross multiply
    3,140.47x = 4,329.61 × 2,607.45
  4. Step 4: Simplify right side
    3,140.47x = 11,289,241.59
  5. Step 5: Solve for x
    x = 11,289,241.59/3,140.47
  6. Step 6: Final answer
    x = 3,594.76

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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.