Home / 1,325.30-1,824.73-1,125.70

Finding the Fourth Proportional to 1,325.30, 1,824.73 and 1,125.70

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Solution

The fourth proportional to 1,325.30, 1,824.73 and 1,125.70 is: 1,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.30 : 1,824.73 = 1,125.70 : x
  2. Step 2: Convert to fraction form
    1,325.30/1,824.73 = 1,125.70/x
  3. Step 3: Cross multiply
    1,325.30x = 1,824.73 × 1,125.70
  4. Step 4: Simplify right side
    1,325.30x = 2,054,091.18
  5. Step 5: Solve for x
    x = 2,054,091.18/1,325.30
  6. Step 6: Final answer
    x = 1,549.91

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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.