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Finding the Fourth Proportional to 1,575.22, 2,360.98 and 649.62

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Solution

The fourth proportional to 1,575.22, 2,360.98 and 649.62 is: 973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.22 : 2,360.98 = 649.62 : x
  2. Step 2: Convert to fraction form
    1,575.22/2,360.98 = 649.62/x
  3. Step 3: Cross multiply
    1,575.22x = 2,360.98 × 649.62
  4. Step 4: Simplify right side
    1,575.22x = 1,533,739.83
  5. Step 5: Solve for x
    x = 1,533,739.83/1,575.22
  6. Step 6: Final answer
    x = 973.67

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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.