Home / 1,250.30-1,875.47-325.80

Finding the Fourth Proportional to 1,250.30, 1,875.47 and 325.80

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Solution

The fourth proportional to 1,250.30, 1,875.47 and 325.80 is: 488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.30 : 1,875.47 = 325.80 : x
  2. Step 2: Convert to fraction form
    1,250.30/1,875.47 = 325.80/x
  3. Step 3: Cross multiply
    1,250.30x = 1,875.47 × 325.80
  4. Step 4: Simplify right side
    1,250.30x = 611,028.13
  5. Step 5: Solve for x
    x = 611,028.13/1,250.30
  6. Step 6: Final answer
    x = 488.71

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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.