Home / 2,890.13-4,328.23-1,653.78

Finding the Fourth Proportional to 2,890.13, 4,328.23 and 1,653.78

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Solution

The fourth proportional to 2,890.13, 4,328.23 and 1,653.78 is: 2,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.13 : 4,328.23 = 1,653.78 : x
  2. Step 2: Convert to fraction form
    2,890.13/4,328.23 = 1,653.78/x
  3. Step 3: Cross multiply
    2,890.13x = 4,328.23 × 1,653.78
  4. Step 4: Simplify right side
    2,890.13x = 7,157,940.21
  5. Step 5: Solve for x
    x = 7,157,940.21/2,890.13
  6. Step 6: Final answer
    x = 2,476.68

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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.