Home / 1,910.40-2,862.90-1,412.93

Finding the Fourth Proportional to 1,910.40, 2,862.90 and 1,412.93

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Solution

The fourth proportional to 1,910.40, 2,862.90 and 1,412.93 is: 2,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.40 : 2,862.90 = 1,412.93 : x
  2. Step 2: Convert to fraction form
    1,910.40/2,862.90 = 1,412.93/x
  3. Step 3: Cross multiply
    1,910.40x = 2,862.90 × 1,412.93
  4. Step 4: Simplify right side
    1,910.40x = 4,045,077.30
  5. Step 5: Solve for x
    x = 4,045,077.30/1,910.40
  6. Step 6: Final answer
    x = 2,117.40

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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.