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Finding the Fourth Proportional to 1,655.23, 2,284.36 and 909.33

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Solution

The fourth proportional to 1,655.23, 2,284.36 and 909.33 is: 1,254.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.23 : 2,284.36 = 909.33 : x
  2. Step 2: Convert to fraction form
    1,655.23/2,284.36 = 909.33/x
  3. Step 3: Cross multiply
    1,655.23x = 2,284.36 × 909.33
  4. Step 4: Simplify right side
    1,655.23x = 2,077,237.08
  5. Step 5: Solve for x
    x = 2,077,237.08/1,655.23
  6. Step 6: Final answer
    x = 1,254.95

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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.