Home / 1,720.95-2,374.77-1,022.31

Finding the Fourth Proportional to 1,720.95, 2,374.77 and 1,022.31

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Solution

The fourth proportional to 1,720.95, 2,374.77 and 1,022.31 is: 1,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.95 : 2,374.77 = 1,022.31 : x
  2. Step 2: Convert to fraction form
    1,720.95/2,374.77 = 1,022.31/x
  3. Step 3: Cross multiply
    1,720.95x = 2,374.77 × 1,022.31
  4. Step 4: Simplify right side
    1,720.95x = 2,427,751.12
  5. Step 5: Solve for x
    x = 2,427,751.12/1,720.95
  6. Step 6: Final answer
    x = 1,410.70

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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.