Home / 3,720.95-5,582.63-1,871.11

Finding the Fourth Proportional to 3,720.95, 5,582.63 and 1,871.11

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Solution

The fourth proportional to 3,720.95, 5,582.63 and 1,871.11 is: 2,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.95 : 5,582.63 = 1,871.11 : x
  2. Step 2: Convert to fraction form
    3,720.95/5,582.63 = 1,871.11/x
  3. Step 3: Cross multiply
    3,720.95x = 5,582.63 × 1,871.11
  4. Step 4: Simplify right side
    3,720.95x = 10,445,705.54
  5. Step 5: Solve for x
    x = 10,445,705.54/3,720.95
  6. Step 6: Final answer
    x = 2,807.27

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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.