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Finding the Fourth Proportional to 735.57, 1,108.40 and 608.40

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Solution

The fourth proportional to 735.57, 1,108.40 and 608.40 is: 916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.57 : 1,108.40 = 608.40 : x
  2. Step 2: Convert to fraction form
    735.57/1,108.40 = 608.40/x
  3. Step 3: Cross multiply
    735.57x = 1,108.40 × 608.40
  4. Step 4: Simplify right side
    735.57x = 674,347.52
  5. Step 5: Solve for x
    x = 674,347.52/735.57
  6. Step 6: Final answer
    x = 916.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.