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Finding the Fourth Proportional to 1,303.34, 1,952.48 and 992.91

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Solution

The fourth proportional to 1,303.34, 1,952.48 and 992.91 is: 1,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.34 : 1,952.48 = 992.91 : x
  2. Step 2: Convert to fraction form
    1,303.34/1,952.48 = 992.91/x
  3. Step 3: Cross multiply
    1,303.34x = 1,952.48 × 992.91
  4. Step 4: Simplify right side
    1,303.34x = 1,938,639.40
  5. Step 5: Solve for x
    x = 1,938,639.40/1,303.34
  6. Step 6: Final answer
    x = 1,487.44

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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.