Home / 3,085.16-4,261.02-2,391.80

Finding the Fourth Proportional to 3,085.16, 4,261.02 and 2,391.80

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Solution

The fourth proportional to 3,085.16, 4,261.02 and 2,391.80 is: 3,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.16 : 4,261.02 = 2,391.80 : x
  2. Step 2: Convert to fraction form
    3,085.16/4,261.02 = 2,391.80/x
  3. Step 3: Cross multiply
    3,085.16x = 4,261.02 × 2,391.80
  4. Step 4: Simplify right side
    3,085.16x = 10,191,507.64
  5. Step 5: Solve for x
    x = 10,191,507.64/3,085.16
  6. Step 6: Final answer
    x = 3,303.40

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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.