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Finding the Fourth Proportional to 700.89, 973.92 and 693.30

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Solution

The fourth proportional to 700.89, 973.92 and 693.30 is: 963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.89 : 973.92 = 693.30 : x
  2. Step 2: Convert to fraction form
    700.89/973.92 = 693.30/x
  3. Step 3: Cross multiply
    700.89x = 973.92 × 693.30
  4. Step 4: Simplify right side
    700.89x = 675,218.74
  5. Step 5: Solve for x
    x = 675,218.74/700.89
  6. Step 6: Final answer
    x = 963.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.