Home / 3,888.15-5,820.80-2,569.47

Finding the Fourth Proportional to 3,888.15, 5,820.80 and 2,569.47

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Solution

The fourth proportional to 3,888.15, 5,820.80 and 2,569.47 is: 3,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.15 : 5,820.80 = 2,569.47 : x
  2. Step 2: Convert to fraction form
    3,888.15/5,820.80 = 2,569.47/x
  3. Step 3: Cross multiply
    3,888.15x = 5,820.80 × 2,569.47
  4. Step 4: Simplify right side
    3,888.15x = 14,956,358.13
  5. Step 5: Solve for x
    x = 14,956,358.13/3,888.15
  6. Step 6: Final answer
    x = 3,846.65

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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.