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Finding the Fourth Proportional to 1,503.71, 2,244.50 and 1,393.75

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Solution

The fourth proportional to 1,503.71, 2,244.50 and 1,393.75 is: 2,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.71 : 2,244.50 = 1,393.75 : x
  2. Step 2: Convert to fraction form
    1,503.71/2,244.50 = 1,393.75/x
  3. Step 3: Cross multiply
    1,503.71x = 2,244.50 × 1,393.75
  4. Step 4: Simplify right side
    1,503.71x = 3,128,271.88
  5. Step 5: Solve for x
    x = 3,128,271.88/1,503.71
  6. Step 6: Final answer
    x = 2,080.37

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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.