Home / 4,886.09-7,315.08-4,378.98

Finding the Fourth Proportional to 4,886.09, 7,315.08 and 4,378.98

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Solution

The fourth proportional to 4,886.09, 7,315.08 and 4,378.98 is: 6,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.09 : 7,315.08 = 4,378.98 : x
  2. Step 2: Convert to fraction form
    4,886.09/7,315.08 = 4,378.98/x
  3. Step 3: Cross multiply
    4,886.09x = 7,315.08 × 4,378.98
  4. Step 4: Simplify right side
    4,886.09x = 32,032,616.45
  5. Step 5: Solve for x
    x = 32,032,616.45/4,886.09
  6. Step 6: Final answer
    x = 6,555.88

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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.