Home / 2,275.64-3,140.70-1,902.02

Finding the Fourth Proportional to 2,275.64, 3,140.70 and 1,902.02

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Solution

The fourth proportional to 2,275.64, 3,140.70 and 1,902.02 is: 2,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.64 : 3,140.70 = 1,902.02 : x
  2. Step 2: Convert to fraction form
    2,275.64/3,140.70 = 1,902.02/x
  3. Step 3: Cross multiply
    2,275.64x = 3,140.70 × 1,902.02
  4. Step 4: Simplify right side
    2,275.64x = 5,973,674.21
  5. Step 5: Solve for x
    x = 5,973,674.21/2,275.64
  6. Step 6: Final answer
    x = 2,625.05

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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.