Home / 1,871.22-2,793.64-1,430.14

Finding the Fourth Proportional to 1,871.22, 2,793.64 and 1,430.14

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Solution

The fourth proportional to 1,871.22, 2,793.64 and 1,430.14 is: 2,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.22 : 2,793.64 = 1,430.14 : x
  2. Step 2: Convert to fraction form
    1,871.22/2,793.64 = 1,430.14/x
  3. Step 3: Cross multiply
    1,871.22x = 2,793.64 × 1,430.14
  4. Step 4: Simplify right side
    1,871.22x = 3,995,289.16
  5. Step 5: Solve for x
    x = 3,995,289.16/1,871.22
  6. Step 6: Final answer
    x = 2,135.13

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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.