Home / 4,739-7,111.22-2,547.80

Finding the Fourth Proportional to 4,739, 7,111.22 and 2,547.80

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Solution

The fourth proportional to 4,739, 7,111.22 and 2,547.80 is: 3,823.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739 : 7,111.22 = 2,547.80 : x
  2. Step 2: Convert to fraction form
    4,739/7,111.22 = 2,547.80/x
  3. Step 3: Cross multiply
    4,739x = 7,111.22 × 2,547.80
  4. Step 4: Simplify right side
    4,739x = 18,117,966.32
  5. Step 5: Solve for x
    x = 18,117,966.32/4,739
  6. Step 6: Final answer
    x = 3,823.16

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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.