Home / 1,357.50-2,037.62-917.34

Finding the Fourth Proportional to 1,357.50, 2,037.62 and 917.34

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Solution

The fourth proportional to 1,357.50, 2,037.62 and 917.34 is: 1,376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.50 : 2,037.62 = 917.34 : x
  2. Step 2: Convert to fraction form
    1,357.50/2,037.62 = 917.34/x
  3. Step 3: Cross multiply
    1,357.50x = 2,037.62 × 917.34
  4. Step 4: Simplify right side
    1,357.50x = 1,869,185.74
  5. Step 5: Solve for x
    x = 1,869,185.74/1,357.50
  6. Step 6: Final answer
    x = 1,376.93

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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.