Home / 1,437.24-2,157.24-890.49

Finding the Fourth Proportional to 1,437.24, 2,157.24 and 890.49

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Solution

The fourth proportional to 1,437.24, 2,157.24 and 890.49 is: 1,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.24 : 2,157.24 = 890.49 : x
  2. Step 2: Convert to fraction form
    1,437.24/2,157.24 = 890.49/x
  3. Step 3: Cross multiply
    1,437.24x = 2,157.24 × 890.49
  4. Step 4: Simplify right side
    1,437.24x = 1,921,000.65
  5. Step 5: Solve for x
    x = 1,921,000.65/1,437.24
  6. Step 6: Final answer
    x = 1,336.59

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1.5x scale

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.