Home / 1,657.40-2,486.72-1,195.70

Finding the Fourth Proportional to 1,657.40, 2,486.72 and 1,195.70

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Solution

The fourth proportional to 1,657.40, 2,486.72 and 1,195.70 is: 1,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.40 : 2,486.72 = 1,195.70 : x
  2. Step 2: Convert to fraction form
    1,657.40/2,486.72 = 1,195.70/x
  3. Step 3: Cross multiply
    1,657.40x = 2,486.72 × 1,195.70
  4. Step 4: Simplify right side
    1,657.40x = 2,973,371.10
  5. Step 5: Solve for x
    x = 2,973,371.10/1,657.40
  6. Step 6: Final answer
    x = 1,794.00

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1.5x scale

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.