Home / 5,111.65-7,668.55-1,648.63

Finding the Fourth Proportional to 5,111.65, 7,668.55 and 1,648.63

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Solution

The fourth proportional to 5,111.65, 7,668.55 and 1,648.63 is: 2,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.65 : 7,668.55 = 1,648.63 : x
  2. Step 2: Convert to fraction form
    5,111.65/7,668.55 = 1,648.63/x
  3. Step 3: Cross multiply
    5,111.65x = 7,668.55 × 1,648.63
  4. Step 4: Simplify right side
    5,111.65x = 12,642,563.24
  5. Step 5: Solve for x
    x = 12,642,563.24/5,111.65
  6. Step 6: Final answer
    x = 2,473.29

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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.