Home / 4,977.60-7,465.80-2,898.78

Finding the Fourth Proportional to 4,977.60, 7,465.80 and 2,898.78

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Solution

The fourth proportional to 4,977.60, 7,465.80 and 2,898.78 is: 4,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.60 : 7,465.80 = 2,898.78 : x
  2. Step 2: Convert to fraction form
    4,977.60/7,465.80 = 2,898.78/x
  3. Step 3: Cross multiply
    4,977.60x = 7,465.80 × 2,898.78
  4. Step 4: Simplify right side
    4,977.60x = 21,641,711.72
  5. Step 5: Solve for x
    x = 21,641,711.72/4,977.60
  6. Step 6: Final answer
    x = 4,347.82

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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.