Home / 3,547.53-5,321.77-1,208.18

Finding the Fourth Proportional to 3,547.53, 5,321.77 and 1,208.18

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Solution

The fourth proportional to 3,547.53, 5,321.77 and 1,208.18 is: 1,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.53 : 5,321.77 = 1,208.18 : x
  2. Step 2: Convert to fraction form
    3,547.53/5,321.77 = 1,208.18/x
  3. Step 3: Cross multiply
    3,547.53x = 5,321.77 × 1,208.18
  4. Step 4: Simplify right side
    3,547.53x = 6,429,666.36
  5. Step 5: Solve for x
    x = 6,429,666.36/3,547.53
  6. Step 6: Final answer
    x = 1,812.43

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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.