Home / 1,611.23-2,417.85-637.34

Finding the Fourth Proportional to 1,611.23, 2,417.85 and 637.34

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Solution

The fourth proportional to 1,611.23, 2,417.85 and 637.34 is: 956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.23 : 2,417.85 = 637.34 : x
  2. Step 2: Convert to fraction form
    1,611.23/2,417.85 = 637.34/x
  3. Step 3: Cross multiply
    1,611.23x = 2,417.85 × 637.34
  4. Step 4: Simplify right side
    1,611.23x = 1,540,980.43
  5. Step 5: Solve for x
    x = 1,540,980.43/1,611.23
  6. Step 6: Final answer
    x = 956.40

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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.