Home / 4,742.86-6,545.40-2,647

Finding the Fourth Proportional to 4,742.86, 6,545.40 and 2,647

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Solution

The fourth proportional to 4,742.86, 6,545.40 and 2,647 is: 3,653.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.86 : 6,545.40 = 2,647 : x
  2. Step 2: Convert to fraction form
    4,742.86/6,545.40 = 2,647/x
  3. Step 3: Cross multiply
    4,742.86x = 6,545.40 × 2,647
  4. Step 4: Simplify right side
    4,742.86x = 17,325,673.80
  5. Step 5: Solve for x
    x = 17,325,673.80/4,742.86
  6. Step 6: Final answer
    x = 3,653.00

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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.