Home / 3,720.79-5,582.81-1,411.75

Finding the Fourth Proportional to 3,720.79, 5,582.81 and 1,411.75

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Solution

The fourth proportional to 3,720.79, 5,582.81 and 1,411.75 is: 2,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.79 : 5,582.81 = 1,411.75 : x
  2. Step 2: Convert to fraction form
    3,720.79/5,582.81 = 1,411.75/x
  3. Step 3: Cross multiply
    3,720.79x = 5,582.81 × 1,411.75
  4. Step 4: Simplify right side
    3,720.79x = 7,881,532.02
  5. Step 5: Solve for x
    x = 7,881,532.02/3,720.79
  6. Step 6: Final answer
    x = 2,118.24

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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.