Home / 3,140.02-4,333.83-2,077.81

Finding the Fourth Proportional to 3,140.02, 4,333.83 and 2,077.81

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Solution

The fourth proportional to 3,140.02, 4,333.83 and 2,077.81 is: 2,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.02 : 4,333.83 = 2,077.81 : x
  2. Step 2: Convert to fraction form
    3,140.02/4,333.83 = 2,077.81/x
  3. Step 3: Cross multiply
    3,140.02x = 4,333.83 × 2,077.81
  4. Step 4: Simplify right side
    3,140.02x = 9,004,875.31
  5. Step 5: Solve for x
    x = 9,004,875.31/3,140.02
  6. Step 6: Final answer
    x = 2,867.78

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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.