Home / 2,897.19-4,340.12-1,431.90

Finding the Fourth Proportional to 2,897.19, 4,340.12 and 1,431.90

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Solution

The fourth proportional to 2,897.19, 4,340.12 and 1,431.90 is: 2,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.19 : 4,340.12 = 1,431.90 : x
  2. Step 2: Convert to fraction form
    2,897.19/4,340.12 = 1,431.90/x
  3. Step 3: Cross multiply
    2,897.19x = 4,340.12 × 1,431.90
  4. Step 4: Simplify right side
    2,897.19x = 6,214,610.67
  5. Step 5: Solve for x
    x = 6,214,610.67/2,897.19
  6. Step 6: Final answer
    x = 2,145.05

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1.5x scale

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.