Home / 4,547.56-6,821.40-1,625.80

Finding the Fourth Proportional to 4,547.56, 6,821.40 and 1,625.80

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Solution

The fourth proportional to 4,547.56, 6,821.40 and 1,625.80 is: 2,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547.56 : 6,821.40 = 1,625.80 : x
  2. Step 2: Convert to fraction form
    4,547.56/6,821.40 = 1,625.80/x
  3. Step 3: Cross multiply
    4,547.56x = 6,821.40 × 1,625.80
  4. Step 4: Simplify right side
    4,547.56x = 11,090,232.12
  5. Step 5: Solve for x
    x = 11,090,232.12/4,547.56
  6. Step 6: Final answer
    x = 2,438.72

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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.