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Finding the Fourth Proportional to 1,897.40, 2,844.24 and 909.94

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Solution

The fourth proportional to 1,897.40, 2,844.24 and 909.94 is: 1,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.40 : 2,844.24 = 909.94 : x
  2. Step 2: Convert to fraction form
    1,897.40/2,844.24 = 909.94/x
  3. Step 3: Cross multiply
    1,897.40x = 2,844.24 × 909.94
  4. Step 4: Simplify right side
    1,897.40x = 2,588,073.52
  5. Step 5: Solve for x
    x = 2,588,073.52/1,897.40
  6. Step 6: Final answer
    x = 1,364.01

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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.