Home / 1,759.90-2,427.60-1,162.40

Finding the Fourth Proportional to 1,759.90, 2,427.60 and 1,162.40

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Solution

The fourth proportional to 1,759.90, 2,427.60 and 1,162.40 is: 1,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.90 : 2,427.60 = 1,162.40 : x
  2. Step 2: Convert to fraction form
    1,759.90/2,427.60 = 1,162.40/x
  3. Step 3: Cross multiply
    1,759.90x = 2,427.60 × 1,162.40
  4. Step 4: Simplify right side
    1,759.90x = 2,821,824.29
  5. Step 5: Solve for x
    x = 2,821,824.29/1,759.90
  6. Step 6: Final answer
    x = 1,603.40

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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.