Home / 2,897.21-3,998.14-1,570.93

Finding the Fourth Proportional to 2,897.21, 3,998.14 and 1,570.93

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Solution

The fourth proportional to 2,897.21, 3,998.14 and 1,570.93 is: 2,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.21 : 3,998.14 = 1,570.93 : x
  2. Step 2: Convert to fraction form
    2,897.21/3,998.14 = 1,570.93/x
  3. Step 3: Cross multiply
    2,897.21x = 3,998.14 × 1,570.93
  4. Step 4: Simplify right side
    2,897.21x = 6,280,784.15
  5. Step 5: Solve for x
    x = 6,280,784.15/2,897.21
  6. Step 6: Final answer
    x = 2,167.87

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1.5x scale

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.