Home / 7,135.80-10,702.56-1,870.92

Finding the Fourth Proportional to 7,135.80, 10,702.56 and 1,870.92

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Solution

The fourth proportional to 7,135.80, 10,702.56 and 1,870.92 is: 2,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.80 : 10,702.56 = 1,870.92 : x
  2. Step 2: Convert to fraction form
    7,135.80/10,702.56 = 1,870.92/x
  3. Step 3: Cross multiply
    7,135.80x = 10,702.56 × 1,870.92
  4. Step 4: Simplify right side
    7,135.80x = 20,023,633.56
  5. Step 5: Solve for x
    x = 20,023,633.56/7,135.80
  6. Step 6: Final answer
    x = 2,806.08

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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.