Home / 1,503.72-2,244.69-1,299.60

Finding the Fourth Proportional to 1,503.72, 2,244.69 and 1,299.60

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Solution

The fourth proportional to 1,503.72, 2,244.69 and 1,299.60 is: 1,939.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.72 : 2,244.69 = 1,299.60 : x
  2. Step 2: Convert to fraction form
    1,503.72/2,244.69 = 1,299.60/x
  3. Step 3: Cross multiply
    1,503.72x = 2,244.69 × 1,299.60
  4. Step 4: Simplify right side
    1,503.72x = 2,917,199.12
  5. Step 5: Solve for x
    x = 2,917,199.12/1,503.72
  6. Step 6: Final answer
    x = 1,939.99

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.