Home / 5,038.88-6,952.89-2,800.78

Finding the Fourth Proportional to 5,038.88, 6,952.89 and 2,800.78

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Solution

The fourth proportional to 5,038.88, 6,952.89 and 2,800.78 is: 3,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.88 : 6,952.89 = 2,800.78 : x
  2. Step 2: Convert to fraction form
    5,038.88/6,952.89 = 2,800.78/x
  3. Step 3: Cross multiply
    5,038.88x = 6,952.89 × 2,800.78
  4. Step 4: Simplify right side
    5,038.88x = 19,473,480.49
  5. Step 5: Solve for x
    x = 19,473,480.49/5,038.88
  6. Step 6: Final answer
    x = 3,864.64

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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.