Home / 2,265.39-3,126.47-1,478.07

Finding the Fourth Proportional to 2,265.39, 3,126.47 and 1,478.07

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Solution

The fourth proportional to 2,265.39, 3,126.47 and 1,478.07 is: 2,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.39 : 3,126.47 = 1,478.07 : x
  2. Step 2: Convert to fraction form
    2,265.39/3,126.47 = 1,478.07/x
  3. Step 3: Cross multiply
    2,265.39x = 3,126.47 × 1,478.07
  4. Step 4: Simplify right side
    2,265.39x = 4,621,134.12
  5. Step 5: Solve for x
    x = 4,621,134.12/2,265.39
  6. Step 6: Final answer
    x = 2,039.88

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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.