Home / 4,890.80-7,336.40-1,969.13

Finding the Fourth Proportional to 4,890.80, 7,336.40 and 1,969.13

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Solution

The fourth proportional to 4,890.80, 7,336.40 and 1,969.13 is: 2,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.80 : 7,336.40 = 1,969.13 : x
  2. Step 2: Convert to fraction form
    4,890.80/7,336.40 = 1,969.13/x
  3. Step 3: Cross multiply
    4,890.80x = 7,336.40 × 1,969.13
  4. Step 4: Simplify right side
    4,890.80x = 14,446,278.80
  5. Step 5: Solve for x
    x = 14,446,278.80/4,890.80
  6. Step 6: Final answer
    x = 2,953.77

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1.5x scale

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.