Home / 2,437.20-3,655.80-1,890.45

Finding the Fourth Proportional to 2,437.20, 3,655.80 and 1,890.45

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Solution

The fourth proportional to 2,437.20, 3,655.80 and 1,890.45 is: 2,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,437.20 : 3,655.80 = 1,890.45 : x
  2. Step 2: Convert to fraction form
    2,437.20/3,655.80 = 1,890.45/x
  3. Step 3: Cross multiply
    2,437.20x = 3,655.80 × 1,890.45
  4. Step 4: Simplify right side
    2,437.20x = 6,911,107.11
  5. Step 5: Solve for x
    x = 6,911,107.11/2,437.20
  6. Step 6: Final answer
    x = 2,835.68

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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.