Home / 4,136.47-5,710.35-2,878.49

Finding the Fourth Proportional to 4,136.47, 5,710.35 and 2,878.49

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Solution

The fourth proportional to 4,136.47, 5,710.35 and 2,878.49 is: 3,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.47 : 5,710.35 = 2,878.49 : x
  2. Step 2: Convert to fraction form
    4,136.47/5,710.35 = 2,878.49/x
  3. Step 3: Cross multiply
    4,136.47x = 5,710.35 × 2,878.49
  4. Step 4: Simplify right side
    4,136.47x = 16,437,162.13
  5. Step 5: Solve for x
    x = 16,437,162.13/4,136.47
  6. Step 6: Final answer
    x = 3,973.72

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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.