Home / 1,589.55-2,191.50-1,147.56

Finding the Fourth Proportional to 1,589.55, 2,191.50 and 1,147.56

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Solution

The fourth proportional to 1,589.55, 2,191.50 and 1,147.56 is: 1,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.55 : 2,191.50 = 1,147.56 : x
  2. Step 2: Convert to fraction form
    1,589.55/2,191.50 = 1,147.56/x
  3. Step 3: Cross multiply
    1,589.55x = 2,191.50 × 1,147.56
  4. Step 4: Simplify right side
    1,589.55x = 2,514,877.74
  5. Step 5: Solve for x
    x = 2,514,877.74/1,589.55
  6. Step 6: Final answer
    x = 1,582.13

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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.