Home / 1,931.06-2,897.40-1,699.40

Finding the Fourth Proportional to 1,931.06, 2,897.40 and 1,699.40

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Solution

The fourth proportional to 1,931.06, 2,897.40 and 1,699.40 is: 2,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.06 : 2,897.40 = 1,699.40 : x
  2. Step 2: Convert to fraction form
    1,931.06/2,897.40 = 1,699.40/x
  3. Step 3: Cross multiply
    1,931.06x = 2,897.40 × 1,699.40
  4. Step 4: Simplify right side
    1,931.06x = 4,923,841.56
  5. Step 5: Solve for x
    x = 4,923,841.56/1,931.06
  6. Step 6: Final answer
    x = 2,549.81

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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.