Home / 1,719.08-2,372.56-1,278.26

Finding the Fourth Proportional to 1,719.08, 2,372.56 and 1,278.26

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Solution

The fourth proportional to 1,719.08, 2,372.56 and 1,278.26 is: 1,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.08 : 2,372.56 = 1,278.26 : x
  2. Step 2: Convert to fraction form
    1,719.08/2,372.56 = 1,278.26/x
  3. Step 3: Cross multiply
    1,719.08x = 2,372.56 × 1,278.26
  4. Step 4: Simplify right side
    1,719.08x = 3,032,748.55
  5. Step 5: Solve for x
    x = 3,032,748.55/1,719.08
  6. Step 6: Final answer
    x = 1,764.17

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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.