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Finding the Fourth Proportional to 1,921.48, 2,883.03 and 948.67

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Solution

The fourth proportional to 1,921.48, 2,883.03 and 948.67 is: 1,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.48 : 2,883.03 = 948.67 : x
  2. Step 2: Convert to fraction form
    1,921.48/2,883.03 = 948.67/x
  3. Step 3: Cross multiply
    1,921.48x = 2,883.03 × 948.67
  4. Step 4: Simplify right side
    1,921.48x = 2,735,044.07
  5. Step 5: Solve for x
    x = 2,735,044.07/1,921.48
  6. Step 6: Final answer
    x = 1,423.40

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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.