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Finding the Fourth Proportional to 1,330.61, 1,835.43 and 882.50

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Solution

The fourth proportional to 1,330.61, 1,835.43 and 882.50 is: 1,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.61 : 1,835.43 = 882.50 : x
  2. Step 2: Convert to fraction form
    1,330.61/1,835.43 = 882.50/x
  3. Step 3: Cross multiply
    1,330.61x = 1,835.43 × 882.50
  4. Step 4: Simplify right side
    1,330.61x = 1,619,764.81
  5. Step 5: Solve for x
    x = 1,619,764.81/1,330.61
  6. Step 6: Final answer
    x = 1,217.31

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1.5x scale

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.