Home / 1,521.07-2,281.59-495.07

Finding the Fourth Proportional to 1,521.07, 2,281.59 and 495.07

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Solution

The fourth proportional to 1,521.07, 2,281.59 and 495.07 is: 742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.07 : 2,281.59 = 495.07 : x
  2. Step 2: Convert to fraction form
    1,521.07/2,281.59 = 495.07/x
  3. Step 3: Cross multiply
    1,521.07x = 2,281.59 × 495.07
  4. Step 4: Simplify right side
    1,521.07x = 1,129,546.76
  5. Step 5: Solve for x
    x = 1,129,546.76/1,521.07
  6. Step 6: Final answer
    x = 742.60

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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.