Home / 1,724.09-2,586.55-491.52

Finding the Fourth Proportional to 1,724.09, 2,586.55 and 491.52

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Solution

The fourth proportional to 1,724.09, 2,586.55 and 491.52 is: 737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.09 : 2,586.55 = 491.52 : x
  2. Step 2: Convert to fraction form
    1,724.09/2,586.55 = 491.52/x
  3. Step 3: Cross multiply
    1,724.09x = 2,586.55 × 491.52
  4. Step 4: Simplify right side
    1,724.09x = 1,271,339.83
  5. Step 5: Solve for x
    x = 1,271,339.83/1,724.09
  6. Step 6: Final answer
    x = 737.40

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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.