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Finding the Fourth Proportional to 1,697.95, 2,344.51 and 1,531.50

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Solution

The fourth proportional to 1,697.95, 2,344.51 and 1,531.50 is: 2,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.95 : 2,344.51 = 1,531.50 : x
  2. Step 2: Convert to fraction form
    1,697.95/2,344.51 = 1,531.50/x
  3. Step 3: Cross multiply
    1,697.95x = 2,344.51 × 1,531.50
  4. Step 4: Simplify right side
    1,697.95x = 3,590,617.07
  5. Step 5: Solve for x
    x = 3,590,617.07/1,697.95
  6. Step 6: Final answer
    x = 2,114.68

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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.