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Finding the Fourth Proportional to 1,925.40, 2,887.72 and 950.88

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Solution

The fourth proportional to 1,925.40, 2,887.72 and 950.88 is: 1,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.40 : 2,887.72 = 950.88 : x
  2. Step 2: Convert to fraction form
    1,925.40/2,887.72 = 950.88/x
  3. Step 3: Cross multiply
    1,925.40x = 2,887.72 × 950.88
  4. Step 4: Simplify right side
    1,925.40x = 2,745,875.19
  5. Step 5: Solve for x
    x = 2,745,875.19/1,925.40
  6. Step 6: Final answer
    x = 1,426.13

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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.