Home / 1,688.94-2,529.72-1,037.70

Finding the Fourth Proportional to 1,688.94, 2,529.72 and 1,037.70

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Solution

The fourth proportional to 1,688.94, 2,529.72 and 1,037.70 is: 1,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.94 : 2,529.72 = 1,037.70 : x
  2. Step 2: Convert to fraction form
    1,688.94/2,529.72 = 1,037.70/x
  3. Step 3: Cross multiply
    1,688.94x = 2,529.72 × 1,037.70
  4. Step 4: Simplify right side
    1,688.94x = 2,625,090.44
  5. Step 5: Solve for x
    x = 2,625,090.44/1,688.94
  6. Step 6: Final answer
    x = 1,554.28

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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.