Home / 1,794.50-2,690.40-972.62

Finding the Fourth Proportional to 1,794.50, 2,690.40 and 972.62

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Solution

The fourth proportional to 1,794.50, 2,690.40 and 972.62 is: 1,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.50 : 2,690.40 = 972.62 : x
  2. Step 2: Convert to fraction form
    1,794.50/2,690.40 = 972.62/x
  3. Step 3: Cross multiply
    1,794.50x = 2,690.40 × 972.62
  4. Step 4: Simplify right side
    1,794.50x = 2,616,736.85
  5. Step 5: Solve for x
    x = 2,616,736.85/1,794.50
  6. Step 6: Final answer
    x = 1,458.20

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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.