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Finding the Fourth Proportional to 1,097.53, 1,515.41 and 704.77

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Solution

The fourth proportional to 1,097.53, 1,515.41 and 704.77 is: 973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.53 : 1,515.41 = 704.77 : x
  2. Step 2: Convert to fraction form
    1,097.53/1,515.41 = 704.77/x
  3. Step 3: Cross multiply
    1,097.53x = 1,515.41 × 704.77
  4. Step 4: Simplify right side
    1,097.53x = 1,068,011.98
  5. Step 5: Solve for x
    x = 1,068,011.98/1,097.53
  6. Step 6: Final answer
    x = 973.11

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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.