Home / 5,552.79-7,648.47-3,871.19

Finding the Fourth Proportional to 5,552.79, 7,648.47 and 3,871.19

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Solution

The fourth proportional to 5,552.79, 7,648.47 and 3,871.19 is: 5,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,552.79 : 7,648.47 = 3,871.19 : x
  2. Step 2: Convert to fraction form
    5,552.79/7,648.47 = 3,871.19/x
  3. Step 3: Cross multiply
    5,552.79x = 7,648.47 × 3,871.19
  4. Step 4: Simplify right side
    5,552.79x = 29,608,642.34
  5. Step 5: Solve for x
    x = 29,608,642.34/5,552.79
  6. Step 6: Final answer
    x = 5,332.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.