Home / 1,931.37-2,897.05-1,071.15

Finding the Fourth Proportional to 1,931.37, 2,897.05 and 1,071.15

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Solution

The fourth proportional to 1,931.37, 2,897.05 and 1,071.15 is: 1,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.37 : 2,897.05 = 1,071.15 : x
  2. Step 2: Convert to fraction form
    1,931.37/2,897.05 = 1,071.15/x
  3. Step 3: Cross multiply
    1,931.37x = 2,897.05 × 1,071.15
  4. Step 4: Simplify right side
    1,931.37x = 3,103,175.11
  5. Step 5: Solve for x
    x = 3,103,175.11/1,931.37
  6. Step 6: Final answer
    x = 1,606.72

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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.