Home / 4,547.28-6,279.36-2,871.66

Finding the Fourth Proportional to 4,547.28, 6,279.36 and 2,871.66

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Solution

The fourth proportional to 4,547.28, 6,279.36 and 2,871.66 is: 3,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547.28 : 6,279.36 = 2,871.66 : x
  2. Step 2: Convert to fraction form
    4,547.28/6,279.36 = 2,871.66/x
  3. Step 3: Cross multiply
    4,547.28x = 6,279.36 × 2,871.66
  4. Step 4: Simplify right side
    4,547.28x = 18,032,186.94
  5. Step 5: Solve for x
    x = 18,032,186.94/4,547.28
  6. Step 6: Final answer
    x = 3,965.49

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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.