Home / 5,826.80-8,740.20-1,931.52

Finding the Fourth Proportional to 5,826.80, 8,740.20 and 1,931.52

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Solution

The fourth proportional to 5,826.80, 8,740.20 and 1,931.52 is: 2,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,826.80 : 8,740.20 = 1,931.52 : x
  2. Step 2: Convert to fraction form
    5,826.80/8,740.20 = 1,931.52/x
  3. Step 3: Cross multiply
    5,826.80x = 8,740.20 × 1,931.52
  4. Step 4: Simplify right side
    5,826.80x = 16,881,871.10
  5. Step 5: Solve for x
    x = 16,881,871.10/5,826.80
  6. Step 6: Final answer
    x = 2,897.28

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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.