Home / 2,271.30-3,134.40-1,386.93

Finding the Fourth Proportional to 2,271.30, 3,134.40 and 1,386.93

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Solution

The fourth proportional to 2,271.30, 3,134.40 and 1,386.93 is: 1,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.30 : 3,134.40 = 1,386.93 : x
  2. Step 2: Convert to fraction form
    2,271.30/3,134.40 = 1,386.93/x
  3. Step 3: Cross multiply
    2,271.30x = 3,134.40 × 1,386.93
  4. Step 4: Simplify right side
    2,271.30x = 4,347,193.39
  5. Step 5: Solve for x
    x = 4,347,193.39/2,271.30
  6. Step 6: Final answer
    x = 1,913.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.