Home / 2,871.45-4,307.16-1,897.32

Finding the Fourth Proportional to 2,871.45, 4,307.16 and 1,897.32

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Solution

The fourth proportional to 2,871.45, 4,307.16 and 1,897.32 is: 2,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.45 : 4,307.16 = 1,897.32 : x
  2. Step 2: Convert to fraction form
    2,871.45/4,307.16 = 1,897.32/x
  3. Step 3: Cross multiply
    2,871.45x = 4,307.16 × 1,897.32
  4. Step 4: Simplify right side
    2,871.45x = 8,172,060.81
  5. Step 5: Solve for x
    x = 8,172,060.81/2,871.45
  6. Step 6: Final answer
    x = 2,845.97

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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.