Home / 1,720.19-2,374.85-1,132.44

Finding the Fourth Proportional to 1,720.19, 2,374.85 and 1,132.44

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Solution

The fourth proportional to 1,720.19, 2,374.85 and 1,132.44 is: 1,563.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.19 : 2,374.85 = 1,132.44 : x
  2. Step 2: Convert to fraction form
    1,720.19/2,374.85 = 1,132.44/x
  3. Step 3: Cross multiply
    1,720.19x = 2,374.85 × 1,132.44
  4. Step 4: Simplify right side
    1,720.19x = 2,689,372.03
  5. Step 5: Solve for x
    x = 2,689,372.03/1,720.19
  6. Step 6: Final answer
    x = 1,563.41

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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.