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Finding the Fourth Proportional to 1,573.54, 2,358.26 and 648.04

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Solution

The fourth proportional to 1,573.54, 2,358.26 and 648.04 is: 971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.54 : 2,358.26 = 648.04 : x
  2. Step 2: Convert to fraction form
    1,573.54/2,358.26 = 648.04/x
  3. Step 3: Cross multiply
    1,573.54x = 2,358.26 × 648.04
  4. Step 4: Simplify right side
    1,573.54x = 1,528,246.81
  5. Step 5: Solve for x
    x = 1,528,246.81/1,573.54
  6. Step 6: Final answer
    x = 971.22

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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.