Home / 3,670.56-5,064.48-2,491.20

Finding the Fourth Proportional to 3,670.56, 5,064.48 and 2,491.20

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Solution

The fourth proportional to 3,670.56, 5,064.48 and 2,491.20 is: 3,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.56 : 5,064.48 = 2,491.20 : x
  2. Step 2: Convert to fraction form
    3,670.56/5,064.48 = 2,491.20/x
  3. Step 3: Cross multiply
    3,670.56x = 5,064.48 × 2,491.20
  4. Step 4: Simplify right side
    3,670.56x = 12,616,632.58
  5. Step 5: Solve for x
    x = 12,616,632.58/3,670.56
  6. Step 6: Final answer
    x = 3,437.25

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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.