Home / 1,589.16-2,193.08-890.52

Finding the Fourth Proportional to 1,589.16, 2,193.08 and 890.52

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Solution

The fourth proportional to 1,589.16, 2,193.08 and 890.52 is: 1,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.16 : 2,193.08 = 890.52 : x
  2. Step 2: Convert to fraction form
    1,589.16/2,193.08 = 890.52/x
  3. Step 3: Cross multiply
    1,589.16x = 2,193.08 × 890.52
  4. Step 4: Simplify right side
    1,589.16x = 1,952,981.60
  5. Step 5: Solve for x
    x = 1,952,981.60/1,589.16
  6. Step 6: Final answer
    x = 1,228.94

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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.