Home / 1,357.46-2,036.55-491.90

Finding the Fourth Proportional to 1,357.46, 2,036.55 and 491.90

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Solution

The fourth proportional to 1,357.46, 2,036.55 and 491.90 is: 737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.46 : 2,036.55 = 491.90 : x
  2. Step 2: Convert to fraction form
    1,357.46/2,036.55 = 491.90/x
  3. Step 3: Cross multiply
    1,357.46x = 2,036.55 × 491.90
  4. Step 4: Simplify right side
    1,357.46x = 1,001,778.95
  5. Step 5: Solve for x
    x = 1,001,778.95/1,357.46
  6. Step 6: Final answer
    x = 737.98

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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.