Home / 1,750.60-2,628.30-1,385.80

Finding the Fourth Proportional to 1,750.60, 2,628.30 and 1,385.80

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Solution

The fourth proportional to 1,750.60, 2,628.30 and 1,385.80 is: 2,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.60 : 2,628.30 = 1,385.80 : x
  2. Step 2: Convert to fraction form
    1,750.60/2,628.30 = 1,385.80/x
  3. Step 3: Cross multiply
    1,750.60x = 2,628.30 × 1,385.80
  4. Step 4: Simplify right side
    1,750.60x = 3,642,298.14
  5. Step 5: Solve for x
    x = 3,642,298.14/1,750.60
  6. Step 6: Final answer
    x = 2,080.60

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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.