Home / 4,085.52-5,639.69-2,670.34

Finding the Fourth Proportional to 4,085.52, 5,639.69 and 2,670.34

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Solution

The fourth proportional to 4,085.52, 5,639.69 and 2,670.34 is: 3,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.52 : 5,639.69 = 2,670.34 : x
  2. Step 2: Convert to fraction form
    4,085.52/5,639.69 = 2,670.34/x
  3. Step 3: Cross multiply
    4,085.52x = 5,639.69 × 2,670.34
  4. Step 4: Simplify right side
    4,085.52x = 15,059,889.79
  5. Step 5: Solve for x
    x = 15,059,889.79/4,085.52
  6. Step 6: Final answer
    x = 3,686.16

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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.