Home / 1,688.03-2,521.80-1,411.24

Finding the Fourth Proportional to 1,688.03, 2,521.80 and 1,411.24

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Solution

The fourth proportional to 1,688.03, 2,521.80 and 1,411.24 is: 2,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.03 : 2,521.80 = 1,411.24 : x
  2. Step 2: Convert to fraction form
    1,688.03/2,521.80 = 1,411.24/x
  3. Step 3: Cross multiply
    1,688.03x = 2,521.80 × 1,411.24
  4. Step 4: Simplify right side
    1,688.03x = 3,558,846.86
  5. Step 5: Solve for x
    x = 3,558,846.86/1,688.03
  6. Step 6: Final answer
    x = 2,108.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.