Home / 1,587.36-2,384.70-1,521.75

Finding the Fourth Proportional to 1,587.36, 2,384.70 and 1,521.75

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Solution

The fourth proportional to 1,587.36, 2,384.70 and 1,521.75 is: 2,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.36 : 2,384.70 = 1,521.75 : x
  2. Step 2: Convert to fraction form
    1,587.36/2,384.70 = 1,521.75/x
  3. Step 3: Cross multiply
    1,587.36x = 2,384.70 × 1,521.75
  4. Step 4: Simplify right side
    1,587.36x = 3,628,917.23
  5. Step 5: Solve for x
    x = 3,628,917.23/1,587.36
  6. Step 6: Final answer
    x = 2,286.13

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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.