Home / 3,840.02-5,297.28-2,581.40

Finding the Fourth Proportional to 3,840.02, 5,297.28 and 2,581.40

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Solution

The fourth proportional to 3,840.02, 5,297.28 and 2,581.40 is: 3,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.02 : 5,297.28 = 2,581.40 : x
  2. Step 2: Convert to fraction form
    3,840.02/5,297.28 = 2,581.40/x
  3. Step 3: Cross multiply
    3,840.02x = 5,297.28 × 2,581.40
  4. Step 4: Simplify right side
    3,840.02x = 13,674,398.59
  5. Step 5: Solve for x
    x = 13,674,398.59/3,840.02
  6. Step 6: Final answer
    x = 3,561.02

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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.