Home / 1,664.20-2,295.30-1,074.88

Finding the Fourth Proportional to 1,664.20, 2,295.30 and 1,074.88

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Solution

The fourth proportional to 1,664.20, 2,295.30 and 1,074.88 is: 1,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.20 : 2,295.30 = 1,074.88 : x
  2. Step 2: Convert to fraction form
    1,664.20/2,295.30 = 1,074.88/x
  3. Step 3: Cross multiply
    1,664.20x = 2,295.30 × 1,074.88
  4. Step 4: Simplify right side
    1,664.20x = 2,467,172.06
  5. Step 5: Solve for x
    x = 2,467,172.06/1,664.20
  6. Step 6: Final answer
    x = 1,482.50

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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.