Home / 2,287.79-3,157.13-1,293.06

Finding the Fourth Proportional to 2,287.79, 3,157.13 and 1,293.06

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Solution

The fourth proportional to 2,287.79, 3,157.13 and 1,293.06 is: 1,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.79 : 3,157.13 = 1,293.06 : x
  2. Step 2: Convert to fraction form
    2,287.79/3,157.13 = 1,293.06/x
  3. Step 3: Cross multiply
    2,287.79x = 3,157.13 × 1,293.06
  4. Step 4: Simplify right side
    2,287.79x = 4,082,366.32
  5. Step 5: Solve for x
    x = 4,082,366.32/2,287.79
  6. Step 6: Final answer
    x = 1,784.41

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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.