Home / 3,136.16-4,321.12-2,574.72

Finding the Fourth Proportional to 3,136.16, 4,321.12 and 2,574.72

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Solution

The fourth proportional to 3,136.16, 4,321.12 and 2,574.72 is: 3,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.16 : 4,321.12 = 2,574.72 : x
  2. Step 2: Convert to fraction form
    3,136.16/4,321.12 = 2,574.72/x
  3. Step 3: Cross multiply
    3,136.16x = 4,321.12 × 2,574.72
  4. Step 4: Simplify right side
    3,136.16x = 11,125,674.09
  5. Step 5: Solve for x
    x = 11,125,674.09/3,136.16
  6. Step 6: Final answer
    x = 3,547.55

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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.