Home / 5,407.70-8,111.79-1,607.94

Finding the Fourth Proportional to 5,407.70, 8,111.79 and 1,607.94

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Solution

The fourth proportional to 5,407.70, 8,111.79 and 1,607.94 is: 2,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.70 : 8,111.79 = 1,607.94 : x
  2. Step 2: Convert to fraction form
    5,407.70/8,111.79 = 1,607.94/x
  3. Step 3: Cross multiply
    5,407.70x = 8,111.79 × 1,607.94
  4. Step 4: Simplify right side
    5,407.70x = 13,043,271.61
  5. Step 5: Solve for x
    x = 13,043,271.61/5,407.70
  6. Step 6: Final answer
    x = 2,411.98

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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.