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Finding the Fourth Proportional to 1,739.24, 2,607.03 and 916.98

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Solution

The fourth proportional to 1,739.24, 2,607.03 and 916.98 is: 1,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.24 : 2,607.03 = 916.98 : x
  2. Step 2: Convert to fraction form
    1,739.24/2,607.03 = 916.98/x
  3. Step 3: Cross multiply
    1,739.24x = 2,607.03 × 916.98
  4. Step 4: Simplify right side
    1,739.24x = 2,390,594.37
  5. Step 5: Solve for x
    x = 2,390,594.37/1,739.24
  6. Step 6: Final answer
    x = 1,374.51

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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.