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Finding the Fourth Proportional to 1,579.32, 2,366.76 and 1,255.32

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Solution

The fourth proportional to 1,579.32, 2,366.76 and 1,255.32 is: 1,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.32 : 2,366.76 = 1,255.32 : x
  2. Step 2: Convert to fraction form
    1,579.32/2,366.76 = 1,255.32/x
  3. Step 3: Cross multiply
    1,579.32x = 2,366.76 × 1,255.32
  4. Step 4: Simplify right side
    1,579.32x = 2,971,041.16
  5. Step 5: Solve for x
    x = 2,971,041.16/1,579.32
  6. Step 6: Final answer
    x = 1,881.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.